A clamping system and a PCB board pin clamping device

Abstract

The present application relates to a clamping system and a pin clamping device for PCB boards, belonging to the field of fixtures. By providing a clamping mechanism, when the PCB board with pins is placed on the rear bottom plate of the air clamp, the pins can enter the gap between the moving edge and the rear bottom plate of the air clamp. Then, under the action of the driving component, in a pneumatic manner, the moving edge can move to clamp the pins between the moving edge and the fixed edge. When the air supply is cut off, under the action of the telescopic spring, the moving edge can move in the reverse direction to release the pins. The process is simple, which facilitates the disassembly of the PCB board and has high working efficiency.

Description

Technical Field

[0001] The present invention relates to a clamping system and a pin clamping device for PCB boards, belonging to the field of jigs. Background Art

[0002] A jig refers to a device used in the mechanical manufacturing process to fix a processing object, making it occupy the correct position to receive construction or inspection, also known as a fixture. Generally speaking, in any process of the technological process, a device used to quickly, conveniently, and safely install a workpiece can be called a fixture. A fixture usually consists of positioning elements (to determine the correct position of the workpiece in the fixture), a clamping device, a tool guiding element (to determine the relative position between the tool and the workpiece or guide the tool direction), a indexing device (to enable the workpiece to complete the processing of several workstations in one installation, including two categories: rotary indexing devices and linear moving indexing devices), connecting elements, and a fixture body (fixture base), etc.

[0003] Currently, most PCB boards need to be fixed by a fixture during the drilling process, and most of the fixing methods are to connect the PCB board with copper column nuts and then fix it on the platform through bolts on the PCB board. This method is very inconvenient for disassembly and assembly and has low work efficiency.

[0004] For example: "A Fast Assembly and Disassembly PCB Board Fixed Clamping Structure" disclosed in the Chinese invention patent / utility model patent (application number: CN201820294281.X), its specification discloses that the current fixing method usually uses copper column nuts to first connect with the four through holes of the PCB board, and then uses bolts to connect with the copper columns and fix them on the test platform. The test platform must have through holes for bolt connection. This method is very inconvenient for the disassembly and assembly of the PCB board, and the fixing of the PCB board and the test platform requires components such as bolts, nuts, and copper columns. The test platform must have bolt holes, and the fixing is very cumbersome; the above patent can prove the defects existing in the prior art.

[0005] Therefore, we make improvements on this and propose a clamping system and a pin clamping device for PCB boards. Summary of the Invention

[0006] (1) The technical problem to be solved by the present invention is that most of the fixing methods are to connect the PCB board with copper column nuts and then fix it on the platform through bolts on the PCB board. This method is very inconvenient for disassembly and assembly and has low work efficiency.

[0007] (2) Technical Solution

[0008] To achieve the above-mentioned invention object, the present invention provides a clamping system, including a clamping module and a detection module. The detection module is used to detect the clamping firmness of the clamping module. The clamping module includes a clamping mechanism for clamping the pins of the PCB board, and the clamping module further includes a driving component for driving the clamping mechanism to act, as well as a positioning module and an adjustment module for adjusting the position of the PCB board.

[0009] The detection module includes a detection mechanism and a driving part for driving the detection mechanism to act. The detection mechanism cooperates with the driving part to detect the clamping firmness of the PCB board and adsorb the drilling waste chips of the PCB board. The clamping system further includes a PLC control module for controlling the clamping mechanism and the detection mechanism.

[0010] A pin clamping device for a PCB board. The clamping mechanism includes a pneumatic chuck rear bottom plate. On one side of the bottom of the pneumatic chuck rear bottom plate, a plurality of socket head cap screws for fixing are provided. On both sides inside the pneumatic chuck rear bottom plate, a moving side and a fixed side are provided. On the fixed side, a plurality of connecting screws are provided. The bottom end of the connecting screw is threadedly connected to one side of the bottom end inside the pneumatic chuck rear bottom plate. A plurality of through holes are formed in the moving side, and positioning members are inserted into the through holes. A countersunk head screw is inserted through the middle of the positioning member, and the bottom end of the countersunk head screw is threadedly connected to one side inside the pneumatic chuck rear bottom plate. On one side of the bottom of the moving side, two fixing blocks are sleeved. One side of the fixing block is fixedly connected to a telescopic spring, and the end of the telescopic spring is fixedly connected to one side inside the pneumatic chuck rear bottom plate. By setting the clamping mechanism, when the PCB board with pins is placed on the pneumatic chuck rear bottom plate, the pins can enter the gap between the moving side and the pneumatic chuck rear bottom plate. Then, under the action of the driving component, in a pneumatic manner, the moving side can move and clamp the pins between the moving side and the fixed side. When the air supply is cut off, under the action of the telescopic spring, the moving side can move in the reverse direction and release the pins. The process is simple, which is convenient for the disassembly of the PCB board and has high working efficiency.

[0011] Among them, the driving component includes a plurality of connecting top pins arranged on one side of the pneumatic chuck rear bottom plate. Two O-rings are arranged on the connecting top pins. A top pin cover is arranged at the end of the connecting top pin. A joint is threadedly connected to the end of the top pin cover. An air pipe is fixedly connected between adjacent two joints. By setting the driving component, after gas passes through the air pipes, the compressed gas can push the connecting top pin to move and push the moving side to move, so that the moving side acts.

[0012] Among them, the detection mechanism includes a detection part for detecting the clamping firmness of the PCB board. The detection part includes a plurality of rectangular grooves opened in the middle of the bottom end of the air chuck rear bottom plate. A plurality of cylinders are arranged below the rectangular grooves at the bottom end of the air chuck rear bottom plate. A rotating rod is arranged between the two cylinders on the left and right. One end of the rotating rod is fixedly connected with a motor, and the other end of the rotating rod is connected with a round block through a bearing. A round block is also installed at one end of the motor. Support rods are fixedly connected to one side of the two round blocks. Grooves for the two ends of the support rod to slide are opened at the top and bottom ends inside the cylinder. A return spring is fixedly connected to one side inside the groove, and the end of the return spring is fixedly connected with one side of the support rod. By setting the detection part, people can control the motor, so that the output shaft of the motor can drive the rotating rod and the detection block to rotate. When the detection block rotates, the end of the detection block can pass through the rectangular groove and impact the pin between the moving side and the fixed side. Then, according to whether the position of the pin changes after the impact, it can be judged whether the clamping effect of the pin meets the requirements. And after the structure of the detection part is transformed, the two connecting plates approach each other, and the detection block deflects relative to the connecting plate, thereby forming a fan blade. After the two cylinders are combined, the fan blade can be placed between the two cylinders. Then, when the fan blade rotates, the suction nozzle can suck the waste chips generated in the PCB board drilling into the space between the two cylinders, playing a function of waste chip cleaning, with strong functionality.

[0013] Among them, telescopic rods are fixedly connected to the middle parts on both sides of the rotating rod. A connecting plate is inserted and connected to the outside of the telescopic rod. Engaging teeth are provided on the inner wall of the connecting plate and the outside of the telescopic rod. The end of the telescopic rod is connected with a T-shaped rod through a bearing. A detection block is arranged at the end of the T-shaped rod. An arc-shaped groove for the end of the detection block to slide is opened on one side of the detection block. A first compression spring is arranged inside the arc-shaped groove.

[0014] Among them, limit blocks are fixedly connected to one side of the top and bottom ends inside the connecting plate. L-shaped sliding grooves for the limit blocks to slide are opened on one side of the top and bottom ends of the T-shaped rod. By setting the limit blocks and the L-shaped sliding grooves, when the two connecting plates approach each other, the limit blocks can slide inside the L-shaped sliding grooves. Through the arc-shaped L-shaped sliding grooves, the detection block is driven to rotate, and when the limit blocks slide to one end of the L-shaped sliding grooves, the two detection blocks can be driven to approach each other, so that the two cylinders can be combined together.

[0015] Among them, electromagnets are fixedly connected to the top and bottom ends of the opposite sides of the two connecting plates. A second compression spring is arranged between the two electromagnets on the left and right.

[0016] Among them, the driving part includes a plurality of fixing frames arranged on one side of the cylinder. The top end of the fixing frame is fixedly connected to the bottom end of the rear air chuck plate. An electric push rod is fixedly connected to the outside of the fixing frame, and one end of the electric push rod is fixedly connected to one end of the adjacent cylinder. A filter screen is installed at one end of one of the cylinders. By setting the driving part, when the electric push rod drives the cylinder to move, it can drive the movable rod to move up and down. When the two cylinders are combined, the suction nozzle and the industrial camera can retract into the round hole, which does not affect the drilling work, and can cooperate with the detection part to realize the dust suction function. When the two cylinders are separated, the suction nozzle and the industrial camera can extend out of the round hole. Through the shooting of the industrial camera and in cooperation with the scale line on the suction nozzle, it can be judged whether the position of the PCB board and the pin has changed after being impacted, and the clamping firmness can be detected, with strong functionality.

[0017] Among them, a T-shaped block is fixedly connected to the inner side of the fixing frame. A gear is arranged inside the fixing frame. A T-shaped sliding groove for the T-shaped block to slide is formed on the gear. Rack teeth are engaged with both sides of the bottom end of the gear. One end of the rack is fixedly connected to one end of the cylinder. The external teeth of the gear are engaged with a movable rod.

[0018] Among them, a plurality of round holes for the movable rod to insert are formed on both sides of the top end of the rear air chuck plate. The top end of the movable rod is connected to a connecting block through a rotating shaft and a coil spring. An industrial camera and a suction nozzle are respectively arranged at the end parts of the two connecting blocks on the same side. A scale line is arranged at the end of the suction nozzle. One end of the suction nozzle is fixedly communicated with a hose. One end of the hose passes through one of the movable rods and is fixedly communicated with one end of one of the cylinders. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0020] Figure 1 Schematic diagram of the clamping system provided by this application;

[0021] Figure 2 Schematic diagram of the structure of the PCB board pin clamping device provided by this application;

[0022] Figure 3 Schematic diagram of the split structure of the clamping mechanism of the PCB board pin clamping device provided by this application;

[0023] Figure 4 Schematic diagram of the cross-sectional view of the rear air chuck plate of the PCB board pin clamping device provided by this application;

[0024] Figure 5 Schematic diagram of the internal perspective structure of the cylinder of the PCB board pin clamping device provided by this application;

[0025] Figure 6 Schematic diagram of the connection plate structure of the PCB board pin clamping device provided by this application;

[0026] Figure 7 Schematic diagram of the sectional view of the connection plate of the PCB board pin clamping device provided by this application;

[0027] Figure 8 Schematic diagram of the T-shaped rod structure of the PCB board pin clamping device provided by this application;

[0028] Figure 9 of the PCB board pin clamping device provided by this application Figure 4 Schematic diagram of the enlarged structure at position A;

[0029] Figure 10 of the PCB board pin clamping device provided by this application Figure 4 Schematic diagram of the enlarged structure at position B;

[0030] Figure 11 Schematic diagram of the sectional view of the cylinder of the PCB board pin clamping device provided by this application;

[0031] Figure 12 Schematic diagram of the structure of the clamping device of the PCB board pin clamping device provided by this application for clamping the board.

[0032] 1. Clamping mechanism; 101. Rear air clamping plate; 102. Moving side; 103. Positioning member; 104. Fixed side; 105. Connecting top pin; 106. Fixed block; 107. Telescopic spring; 108. Top pin cover; 109. Joint; 110. Air pipe; 111. O-ring; 112. Cup head screw; 113. Countersunk head screw; 114. Connecting screw;

[0033] 2. Detection mechanism; 201. Cylinder; 202. Rotating rod; 203. Motor; 204. Round block; 205. Support rod; 206. Groove; 207. Return spring; 208. Telescopic rod; 209. Connecting plate; 210. T-shaped rod; 211. L-shaped chute; 212. Detection block; 213. Arc-shaped groove; 214. First compression spring; 215. Electromagnet; 216. Second compression spring; 217. Fixed bracket; 218. Electric push rod; 219. T-shaped block; 220. Gear; 221. T-shaped chute; 222. Rack; 223. Movable rod; 224. Round hole; 225. Connecting block; 226. Industrial camera; 227. Suction nozzle; 228. Hose; 229. Limit block; 230. Filter screen; 231. Rectangular groove. Detailed implementation manners

[0034] The following combines the specification drawings and embodiments to further describe the detailed implementation manners of the present invention in detail. The following embodiments are only used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0035] Embodiment 1:

[0036] As Figure 1 shown, this embodiment proposes a clamping system, including a clamping module and a detection module. The detection module is used to detect the clamping firmness of the clamping module. The clamping module includes a clamping mechanism 1 for clamping the pins of the PCB board. The clamping module also includes a driving component for driving the clamping mechanism to act, and a positioning module and an adjustment module for adjusting the position of the PCB board;

[0037] The detection module includes a detection mechanism 2 and a driving part for driving the detection mechanism 2 to act. The detection mechanism 2 cooperates with the driving part to detect the clamping firmness of the PCB board and adsorb the drilling waste chips of the PCB board. The clamping system also includes a PLC control module for controlling the clamping mechanism 1 and the detection mechanism 2.

[0038] Embodiment 2:

[0039] The following further introduces the solution in Embodiment 1 in combination with the specific working mode, as described in detail below:

[0040] As Figure 2 , Figure 3 and Figure 12As shown in the figure, this embodiment proposes a PCB board pin clamping device. On both sides inside the air chuck rear base plate 101, a moving side 102 and a fixed side 104 are provided. A plurality of connecting screws 114 are provided on the fixed side 104. The bottom end of the connecting screw 114 is threadedly connected to one side of the bottom end inside the air chuck rear base plate 101. A plurality of through holes are formed in the moving side 102, and a positioning member 103 is inserted and connected inside the through holes. A countersunk head screw 113 is inserted and connected in the middle of the positioning member 103. The bottom end of the countersunk head screw 113 is threadedly connected to one side inside the air chuck rear base plate 101. Two fixing blocks 106 are sleeved on one side of the bottom of the moving side 102. One side of the fixing block 106 is fixedly connected to a telescopic spring 107. The end of the telescopic spring 107 is fixedly connected to one side inside the air chuck rear base plate 101. By setting the clamping mechanism 1, when the PCB board with pins is placed on the air chuck rear base plate 101, the pins can enter the gap between the moving side 102 and the air chuck rear base plate 101. Then, under the action of the driving component, in a pneumatic manner, the moving side 102 can move and clamp the pins between the moving side 102 and the fixed side 104. When the air supply is cut off, under the action of the telescopic spring 107, the moving side 102 can move in the reverse direction to release the pins. The process is simple, which is convenient for the disassembly of the PCB board and has high working efficiency.

[0041] As Figure 2 , Figure 3 and Figure 12 shown, as a preferred embodiment, on the basis of the above method, further, the driving component is arranged on one side of the air chuck rear base plate 101, including a plurality of connecting top pins 105 arranged on one side of the air chuck rear base plate 101. Two O-rings 111 are arranged on the connecting top pins 105. A top pin cover 108 is arranged at the end of the connecting top pin 105. A joint 109 is threadedly connected to the end of the top pin cover 108. An air pipe 110 is fixedly connected and communicated between adjacent two joints 109. By setting the driving component, after gas is passed between the air pipes 110, the compressed gas can push the connecting top pin 105 to move and push the moving side 102 to move, so that the moving side 102 acts.

[0042] As Figure 4 , Figure 5 and Figure 11As shown, as a preferred embodiment, on the basis of the above method, further, the detection mechanism 2 includes a detection part for detecting the clamping firmness of the PCB board. The detection part includes a plurality of rectangular grooves 231 opened in the middle of the bottom end of the air chuck rear bottom plate 101. A plurality of cylinders 201 are arranged at the bottom end of the air chuck rear bottom plate 101 and are located below the rectangular grooves 231. A rotating rod 202 is arranged between the left and right cylinders 201. One end of the rotating rod 202 is fixedly connected to a motor 203, and the other end of the rotating rod 202 is connected to a round block 204 through a bearing. A round block 204 is also installed at one end of the motor 203. Support rods 205 are fixedly connected to one side of both round blocks 204. Grooves 206 for the two ends of the support rod 205 to slide are opened at the top and bottom ends inside the cylinder 201. A return spring 207 is fixedly connected to one side inside the groove 206, and the end of the return spring 207 is fixedly connected to one side of the support rod 205. By setting the detection part, people can control the motor 203, so that the output shaft of the motor 203 can drive the rotating rod 202 and the detection block 212 to rotate. When the detection block 212 rotates, the end of the detection block 212 can pass through the rectangular groove 231 and hit the pin between the moving edge 102 and the fixed edge 104. Then, according to whether the position of the pin changes after being hit, it can be judged whether the clamping effect of the pin meets the requirements. And after the structure of the detection part is transformed, the two connection disks 209 approach each other, and the detection block 212 deflects relative to the connection disk 209, thereby forming a fan blade. After the two cylinders 201 are combined, the fan blade can be placed between the two cylinders 201. Then, when the fan blade rotates, the suction nozzle 227 can suck the waste chips generated during the drilling of the PCB board into the space between the two cylinders 201, playing a role in waste chip cleaning, with strong functionality.

[0043] As Figure 4 , Figure 5 , Figure 6 and Figure 7 shown, as a preferred embodiment, on the basis of the above method, further, telescopic rods 208 are fixedly connected to the middle parts on both sides of the rotating rod 202. The outside of the telescopic rod 208 is inserted and connected with a connection disk 209. The inner wall of the connection disk 209 and the outside of the telescopic rod 208 are both provided with matching teeth. The end of the telescopic rod 208 is connected to a T-shaped rod 210 through a bearing. A detection block 212 is arranged at the end of the T-shaped rod 210. An arc-shaped groove 213 for the end of the detection block 212 to slide is opened on one side of the detection block 212. A first compression spring 214 is arranged inside the arc-shaped groove 213. By setting the first compression spring 214, the acting force between the detection block 212 and the pin can be buffered, avoiding excessive acting force of the detection block 212 hitting the pin due to excessive torque when the motor 203 is working, which may cause forced displacement of the pin.

[0044] As Figure 4 , Figure 5 , Figure 6 ,Figure 7 and Figure 8 As shown in Figure 8 , as a preferred embodiment, on the basis of the above method, further, on one side of the inner top and bottom of the connection plate 209, a limiting block 229 is fixedly connected. On one side of the top and bottom of the T-shaped rod 210, an L-shaped sliding groove 211 for the limiting block 229 to slide is provided. By setting the limiting block 229 and the L-shaped sliding groove 211, when the two connection plates 209 approach each other, the limiting block 229 can slide inside the L-shaped sliding groove 211. Through the arc-shaped L-shaped sliding groove 211, the detection block 212 is driven to rotate, and when the limiting block 229 slides to one end of the L-shaped sliding groove 211, the two detection blocks 212 can be driven to approach each other, so that the two cylinders 201 can be combined together.

[0045] As Figure 4 、 Figure 5 、 Figure 9 and Figure 10 As shown in Figure 9 , Figure 10 , as a preferred embodiment, on the basis of the above method, further, on the top and bottom of the opposite sides of the two connection plates 209, electromagnets 215 are fixedly connected. A second compression spring 216 is arranged between the left and right electromagnets 215. By setting the electromagnets 215 and the second compression spring 216, when the electromagnets 215 work, the two connection plates 209 can be driven to approach each other.

[0046] As Figure 4 、 Figure 5 、 Figure 9 and Figure 10 As shown in Figure 4 , Figure 5 , Figure 9 , Figure 10 , as a preferred embodiment, on the basis of the above method, further, the driving part includes a plurality of fixing frames 217 arranged on one side of the cylinder 201. The top of the fixing frame 217 is fixedly connected to the bottom of the air chuck rear bottom plate 101. An electric push rod 218 is fixedly connected to the outside of the fixing frame 217. One end of the electric push rod 218 is fixedly connected to one end of the adjacent cylinder 201. A filter screen 230 is installed at one end of one of the cylinders 201. By setting the driving part, when the electric push rod 218 drives the cylinder 201 to move, the movable rod 223 can be driven to move up and down. When the two cylinders 201 are combined, the suction nozzle 227 and the industrial camera 226 can be retracted into the round hole 224, which does not affect the drilling work, and the dust suction function can be realized in cooperation with the detection part. When the two cylinders 201 are separated, the suction nozzle 227 and the industrial camera 226 can extend out of the round hole 224. Through the shooting of the industrial camera 226 and in cooperation with the scale line on the suction nozzle 227, it can be judged whether the PCB board and the pin have changed their positions after being impacted, and the clamping firmness can be detected, with strong functionality.

[0047] As Figure 4 、 Figure 5 、 Figure 9 and Figure 10As shown, as a preferred embodiment, on the basis of the above method, further, a T-shaped block 219 is fixedly connected to the inner side of the fixing frame 217, a gear 220 is arranged on the inner side of the fixing frame 217, and a T-shaped sliding groove 221 for the T-shaped block 219 to slide is formed on the gear 220. Both sides of the bottom end of the gear 220 are engaged with racks 222, one end of the rack 222 is fixedly connected to one end of the cylinder 201, and the outer teeth of the gear 220 are engaged with a movable rod 223. By arranging the gear 220, the rack 222 and the movable rod 223, when the electric push rod 218 expands and contracts, the movable rod 223 can move up and down.

[0048] As Figure 4 , Figure 5 , Figure 9 and Figure 10 As shown, as a preferred embodiment, on the basis of the above method, further, a plurality of round holes 224 for the movable rod 223 to insert are formed on both sides of the top end of the air clamp rear bottom plate 101. The top end of the movable rod 223 is connected with a connecting block 225 through a rotating shaft and a torsion spring. An industrial camera 226 and a suction nozzle 227 are respectively arranged at the end parts of the two connecting blocks 225 on the same side. A scale line is arranged at the end of the suction nozzle 227. One end of the suction nozzle 227 is fixedly communicated with a hose 228. One end of the hose 228 passes through one of the movable rods 223 and is fixedly communicated with one end of one of the cylinders 201. Through the scale line on the suction nozzle 227, the industrial camera 226 can judge whether the position of the PCB board changes by referring to the position of the PCB board on the scale line.

[0049] Embodiment 3:

[0050] The solutions in Embodiment 1 and Embodiment 2 will be further introduced below in combination with the specific working mode. See the following description for details:

[0051] Specifically, when this clamping system and the PCB board pin clamping device are working / in use: Place the PCB board with pins on the air clamp rear bottom plate 101, with the pins placed between the moving edge 102 and the fixed edge 104. Compressed air is introduced into the air pipe 110, and the compressed air pushes the connecting top pin 105 to move, and then pushes the moving edge 102 to move to clamp the pins;

[0052] Control the output shaft of the motor 203 to rotate forward and backward, and the rotating rod 202, the connecting disk 209 and the detection block 212 rotate accordingly. The two detection blocks 212 intermittently hit the pins, and the industrial camera 226 takes pictures of the changes of the PCB board on the scale line of the suction nozzle 227 before and after the impact;

[0053] After the detection is completed, control the two electric push rods 218 to extend, the two cylinders 201 approach each other, and control the electromagnet 215 to work, the two connecting plates 209 approach each other. Through the L-shaped sliding groove 211, the connecting plate 209 can drive the T-shaped rod 210 and the detection block 212 to rotate during the movement. When the limit block 229 moves to the end of the L-shaped sliding groove 211, it can drive the T-shaped rod 210 to move, shortening the distance between the two detection blocks 212. Finally, the two cylinders 201 are combined together. During the movement of the cylinder 201, the rack 222 moves accordingly and drives the gear 220 to rotate, causing the movable rod 223 to descend, and the industrial camera 226 and the suction nozzle 227 retract into the two circular holes 224 respectively. Control the motor 203 to work. When the connecting plate 209 and the detection block 212 rotate, air flow can be generated to suck the waste chips generated during the PCB drilling into the cylinder 201;

[0054] After the drilling is completed, stop supplying air. Under the action of the telescopic spring 107, the moving edge 102 resets, the moving edge 102 and the fixed edge 104 release the pin, and the PCB board is taken off.

[0055] The above embodiments are only used to illustrate the present invention, rather than limiting the present invention. Although the present invention has been described in detail with reference to the embodiments, those of ordinary skill in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should all be covered by the scope of the claims of the present invention.

Claims

1. A clamping system, characterized in that, It includes a clamping module and a detection module. The detection module is used to detect the clamping firmness of the clamping module. The clamping module includes a clamping mechanism (1) for clamping the pins of the PCB board. The clamping module also includes a driving component for driving the action of the clamping mechanism (1), a positioning module and an adjustment module for adjusting the position of the PCB board; The detection module includes a detection mechanism (2) and a driving part for driving the action of the detection mechanism (2). The detection mechanism (2) cooperates with the driving part to detect the clamping firmness of the PCB board and adsorb the drilling waste chips of the PCB board. The clamping system also includes a PLC control module for controlling the clamping mechanism (1) and the detection mechanism (2); The clamping mechanism (1) includes a pneumatic clamp rear bottom plate (101); The detection mechanism (2) includes a detection part for detecting the clamping firmness of the PCB board. The detection part includes a plurality of rectangular grooves (231) opened in the middle of the bottom end of the pneumatic clamp rear bottom plate (101). A plurality of cylinders (201) are arranged below the rectangular grooves (231) at the bottom end of the pneumatic clamp rear bottom plate (101). A rotating rod (202) is arranged between the two cylinders (201) on the left and right. One end of the rotating rod (202) is fixedly connected to a motor (203). The other end of the rotating rod (202) is connected to a round block (204) through a bearing. A round block (204) is also installed at one end of the motor (203). Support rods (205) are fixedly connected to one side of the two round blocks (204). Grooves (206) for the two ends of the support rod (205) to slide are opened at the top and bottom ends inside the cylinder (201). A return spring (207) is fixedly connected to one side inside the groove (206). The end of the return spring (207) is fixedly connected to one side of the support rod (205).

2. A PCB board pin clamping device, using the clamping system as described in claim 1, characterized in that, A plurality of socket head cap screws (112) for fixing are arranged on one side of the bottom of the pneumatic clamp rear bottom plate (101). A moving side (102) and a fixed side (104) are arranged on both sides inside the pneumatic clamp rear bottom plate (101). A plurality of connecting screws (114) are arranged on the fixed side (104). The bottom end of the connecting screw (114) is threadedly connected to one side of the bottom end inside the pneumatic clamp rear bottom plate (101). A plurality of through holes are opened on the moving side (102). A positioning member (103) is inserted into the through holes. A countersunk head screw (113) is inserted through the middle of the positioning member (103). The bottom end of the countersunk head screw (113) is threadedly connected to one side inside the pneumatic clamp rear bottom plate (101). Two fixing blocks (106) are sleeved on one side of the bottom of the moving side (102). A telescopic spring (107) is fixedly connected to one side of the fixing block (106). The end of the telescopic spring (107) is fixedly connected to one side inside the pneumatic clamp rear bottom plate (101).

3. The pin clamping device for PCB board according to claim 2, characterized in that, The driving assembly is arranged on one side of the air chuck rear bottom plate (101), and includes a plurality of connecting top pins (105) arranged on one side of the air chuck rear bottom plate (101). Two O-rings (111) are arranged on the connecting top pin (105). A top pin cover (108) is arranged at the end of the connecting top pin (105). A joint (109) is threadedly connected to the end of the top pin cover (108). An air pipe (110) is fixedly communicated between two adjacent joints (109).

4. The pin clamping device for PCB board according to claim 2, characterized in that, On both sides of the middle part of the rotating rod (202), telescopic rods (208) are fixedly connected. A connecting disc (209) is inserted and connected to the outside of the telescopic rod (208). The inner wall of the connecting disc (209) and the outside of the telescopic rod (208) are both provided with matching teeth. The end of the telescopic rod (208) is connected to a T-shaped rod (210) through a bearing. A detection block (212) is arranged at the end of the T-shaped rod (210). An arc-shaped groove (213) for the end of the detection block (212) to slide is opened on one side of the detection block (212). A first compression spring (214) is arranged inside the arc-shaped groove (213).

5. The pin clamping device for PCB board according to claim 4, characterized in that, On one side of the top and bottom of the inside of the connecting disc (209), limit blocks (229) are fixedly connected. On one side of the top and bottom of the T-shaped rod (210), L-shaped sliding grooves (211) for the limit blocks (229) to slide are opened.

6. The pin clamping device for PCB board according to claim 5, characterized in that, Electromagnets (215) are fixedly connected to the top and bottom of the opposite sides of the two connecting discs (209). A second compression spring (216) is arranged between the left and right electromagnets (215).

7. The pin clamping device for PCB board according to claim 6, wherein, The driving part includes a plurality of fixing frames (217) arranged on one side of the cylinder (201). The top of the fixing frame (217) is fixedly connected to the bottom of the air chuck rear bottom plate (101). An electric push rod (218) is fixedly connected to the outside of the fixing frame (217). One end of the electric push rod (218) is fixedly connected to one end of the adjacent cylinder (201). A filter screen (230) is installed at one end of one of the cylinders (201).

8. A PCB board pin clamping device according to claim 7, characterized in that, A T-shaped block (219) is fixedly connected to the inside of the fixing frame (217). A gear (220) is arranged inside the fixing frame (217). A T-shaped sliding groove (221) for the T-shaped block (219) to slide is opened on the gear (220). Rack bars (222) are engaged with both sides of the bottom end of the gear (220). One end of the rack bar (222) is fixedly connected to one end of the cylinder (201). The outer teeth of the gear (220) are engaged with a movable rod (223).

9. A PCB board pin clamping device according to claim 8, wherein, On both sides of the top end of the air clamping rear bottom plate (101), a plurality of round holes (224) for inserting the movable rods (223) are provided. The top end of the movable rod (223) is connected with a connecting block (225) through a rotating shaft and a torsion spring. An industrial camera (226) and a suction nozzle (227) are respectively arranged at the end parts of the two connecting blocks (225) on the same side. A scale line is provided at the end of the suction nozzle (227). One end of the suction nozzle (227) is fixedly communicated with a hose (228). One end of the hose (228) passes through one of the movable rods (223) and is fixedly communicated with one end of one of the cylinders (201).

Images