A gantry crane for PCB electroplating line

Abstract

The utility model relates to a gantry crane for a PCB electroplating line, comprising a gantry, a lifting assembly, a transverse movement assembly and an anti-collision assembly. The gantry has a two-way traveling direction. The lifting assembly is installed on the gantry and has a lifting end connected to a flying bus. The transverse movement assembly is installed at the bottom of the gantry. The anti-collision assembly comprises a guardrail, two levers and a displacement sensor. The guardrail is slidably connected to the gantry. The two levers are installed on the guardrail. The displacement sensor is connected to the gantry and a detection end thereof is arranged at a position between the two levers. The displacement sensor is electrically connected to the transverse movement assembly. The gantry can be driven to move by the transverse movement assembly. When two adjacent gantries have a tendency to collide, since the guardrail extends outside the gantry, the guardrail is firstly hit, driving the lever to move and abut against the displacement sensor, and the transverse movement assembly stops moving, thereby effectively avoiding collision between the gantries.

Description

Technical Field

[0001] The utility model relates to the technical field of PCB production and manufacturing, in particular to a gantry crane for a PCB electroplating line. Background Art

[0002] In the process of surface treatment of PCB, gantry crane and flying bar are needed to transfer PCB boards.

[0003] For example, the utility model patent with application number CN202320566777.9 proposes a PCB board gantry electroplating equipment, in which the electroplating crane includes multiple electroplating flybar hooks and multiple first electroplating flybar sensing devices. When the electroplating crane is working, the electroplating flybar is lifted by the electroplating flybar hook, and the first electroplating flybar sensing device is used to sense whether there is an electroplating flybar on the electroplating cylinder body below, thereby avoiding collision damage to the electroplating crane, the electroplating flybar hook, the electroplating flybar, etc., and ensuring the safe and stable operation of the PCB board gantry electroplating equipment.

[0004] In order to improve production efficiency, multiple cranes are usually installed on the production line. However, there is a possibility of collision between the multiple cranes during operation, resulting in damage to the cranes. At the same time, the flying bus may fall and the PCB boards contained in it may be damaged. Utility Model Content

[0005] In view of this, it is necessary to provide a gantry crane for a PCB electroplating line to solve the problem that multiple cranes may collide during operation, causing damage to the cranes, and at the same time, the flying bus may fall and the PCB boards contained therein may be damaged.

[0006] The utility model provides a gantry crane for a PCB electroplating line, comprising a gantry, a lifting assembly, a transverse movement assembly and an anti-collision assembly, wherein the gantry has a two-way travel direction, the lifting assembly is installed on the gantry, and has a lifting end connected to a flying bar, and is used to drive the flying bar to lift and lower, the transverse movement assembly is installed at the bottom of the gantry, and is used to drive the gantry to move along the two-way travel direction, the anti-collision assembly comprises a guardrail, two levers and a displacement sensor, the guardrail is arranged along the two-way travel direction and extends to the outside of the gantry in both directions, the guardrail is slidably connected to the gantry, the two levers are relatively installed on the guardrail, the displacement sensor is connected to the gantry, the detection end of the displacement sensor is arranged between the two levers, the guardrail can drive the lever to slide relative to the gantry, and when the displacement sensor abuts against the lever, the transverse movement assembly stops.

[0007] Furthermore, the lifting assembly includes a winding member, a lifting beam and at least two hooks, the winding member is installed on the gantry, the output end of the winding member is connected to the lifting beam, and the bottom of the lifting beam is equipped with at least two hooks for connecting to the flying bus.

[0008] Furthermore, the winding member includes a first motor, a first reducer, a horizontally arranged lifting spindle, a reel and a belt. The first motor and the first reducer are both installed on the top of the gantry. The lifting spindle is rotatably connected to the gantry. The output end of the first motor is connected to the lifting spindle via the first reducer. The reel is coaxially sleeved on the lifting spindle. One end of the belt is connected to the reel, and the other end of the belt is connected to the lifting beam.

[0009] Furthermore, the number of the hooks is three, two of which are arranged at the bottom position of one side of the lifting beam, and the other hook is arranged at the bottom position of the other side of the lifting beam, and a V-shaped groove is formed on the top of the hook.

[0010] Furthermore, the lifting assembly also includes a lifting positioning member, and both sides of the lifting beam are slidably connected to the gantry via two lifting positioning members.

[0011] Furthermore, the transverse movement assembly includes two transverse movement guide rails arranged in parallel and connected to the gantry, two guide rail boxes respectively slidably connected to the two transverse movement guide rails, a transverse movement beam connecting the two guide rail boxes, and a driving member installed on the transverse movement beam and connected to the transverse movement guide rails.

[0012] Furthermore, the driving member includes a second motor, a second reducer, a horizontally arranged transverse main shaft and two traveling wheels. The second motor and the second reducer are both installed on the transverse beam. The output end of the second motor is connected to the transverse main shaft via the second reducer. The two ends of the transverse main shaft respectively extend to grooves formed on the two guide rail boxes and are rotatably connected to the two guide rail boxes. The two traveling wheels are respectively arranged in the two grooves and connected to the transverse main shaft, and the bottom of the traveling wheel abuts against the transverse guide rail.

[0013] Furthermore, the guardrail is ring-shaped.

[0014] Furthermore, the two levers are in contact with each other, and the outer diameters of the two levers gradually expand in opposite directions. The displacement sensor is a contact switch, which is triangular in shape and has a tip facing the position between the two levers.

[0015] Furthermore, it also includes a first restoring member and a second restoring member, the guardrail is connected to the gantry via the first restoring member, and the guardrail is connected to the transverse movement assembly via the second restoring member.

[0016] Compared with the prior art, the gantry can be driven to move by the transverse movement assembly. When two adjacent gantries tend to collide, the guardrail extends outside the gantry and the guardrail is hit first, driving the lever to move and abut against the displacement sensor, and the transverse movement assembly stops moving, which can effectively avoid collision between the gantries. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic diagram of the overall structure of a gantry crane for a PCB electroplating line provided by an embodiment of the utility model;

[0018] Figure 2 A schematic structural diagram of an anti-collision component in a gantry crane of a PCB electroplating line provided by an embodiment of the utility model;

[0019] Figure 3 A schematic diagram of the structure of a gantry in a gantry crane for a PCB electroplating line provided by an embodiment of the utility model;

[0020] Figure 4 A schematic diagram of the structure of the lifting assembly in the gantry crane of the PCB electroplating line provided by the embodiment of the utility model;

[0021] Figure 5 A schematic structural diagram of a transverse movement assembly in a gantry crane for a PCB electroplating line provided in an embodiment of the utility model. DETAILED DESCRIPTION

[0022] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings, wherein the accompanying drawings constitute a part of the present application and are used together with the embodiments of the present invention to illustrate the principles of the present invention, but are not used to limit the scope of the present invention.

[0023] like Figure 1As shown, the utility model provides a gantry crane for a PCB electroplating line, comprising a gantry 100, a lifting assembly 200, a lateral movement assembly 300 and an anti-collision assembly 400. The gantry 100 has a bidirectional travel direction. The lifting assembly 200 is installed on the gantry 100 and has a lifting end connected to the flying bus, which is used to drive the flying bus to rise and fall. The lateral movement assembly 300 is installed at the bottom of the gantry 100 to drive the gantry 100 to move along the bidirectional travel direction. The anti-collision assembly 400 includes a guardrail 410, two levers 42 0 and displacement sensor 430, the guardrail 410 is arranged along the two-way traveling direction and extends in both directions to the outside of the gantry 100, the guardrail 410 is slidably connected to the gantry 100, two levers 420 are relatively installed on the guardrail 410, the displacement sensor 430 is connected to the gantry 100, and the detection end of the displacement sensor 430 is set between the two levers 420, the guardrail 410 can drive the lever 420 to slide relative to the gantry 100, and when the displacement sensor 430 abuts against the lever 420, the transverse movement assembly 300 stops moving.

[0024] During implementation, the gantry 100 can be driven to move by the transverse movement component 300. When two adjacent gantries 100 tend to collide, since the guardrail 410 extends outside the gantry 100, the guardrail 410 is hit first, driving the lever 420 to move and abut against the displacement sensor 430, and the transverse movement component 300 stops moving, which can effectively avoid collision between the gantries 100.

[0025] like Figure 3 As shown, the gantry 100 in this embodiment includes a horizontally arranged top beam 110 and two vertically arranged columns 120, the tops of the two columns 120 are connected to the two sides of the top beam 110, the bottoms of the two columns 120 are connected to the transverse movement assembly 300, and the anti-collision assembly 400 is installed on the opposite sides of the two columns 120, and the lifting assembly 200 is installed on the top beam 110.

[0026] like Figure 4 As shown, the lifting assembly 200 in this embodiment includes a winding member 210, a lifting beam 220 and at least two hooks 230. The winding member 210 is installed on the gantry 100, and the output end of the winding member 210 is connected to the lifting beam 220. At least two hooks 230 for connecting with the flying bar are installed at the bottom of the lifting beam 220. The flying bar can be placed on the hook 230, and the lifting beam 220 is driven to move up and down by the winding member 210.

[0027] In one embodiment, the winding member 210 includes a first motor 211, a first reducer 212, a horizontally arranged lifting spindle 213, a reel 214 and a belt 215. The first motor 211 and the first reducer 212 are both installed on the top of the gantry 100. The lifting spindle 213 is rotatably connected to the gantry 100. The output end of the first motor 211 is connected to the lifting spindle 213 via the first reducer 212. The reel 214 is coaxially sleeved on the lifting spindle 213. One end of the belt 215 is connected to the reel 214, and the other end of the belt 215 is connected to the lifting beam 220.

[0028] It also includes a plurality of bearing seats 216 installed on the top beam 110 , and the lifting spindle 213 is connected to the plurality of bearing seats 216 .

[0029] In order to improve the stability of the placement of the flying bus, in one embodiment, the number of the hooks 230 is three, two of which are arranged at the bottom position of one side of the lifting beam 220, and the other hook 230 is arranged at the bottom position of the other side of the lifting beam 220, and a V-shaped groove is formed on the top of the hook 230.

[0030] In order to improve the stability of the lifting beam 220 moving up and down, in one embodiment, the lifting assembly 200 further includes a lifting positioning member 240 , and both sides of the lifting beam 220 are slidably connected to the gantry 100 via two lifting positioning members 240 .

[0031] The lifting and positioning member 240 in this embodiment includes a vertical plate 241, a plurality of first lifting and positioning wheels 242 and a second lifting and positioning wheel 243. A lifting guide rail 130 is installed on the opposite side of the two columns 120. The vertical plate 241 is connected to the lifting beam 220 and is slidably connected to the lifting guide rail 130. The side of the vertical plate 241 away from the lifting beam 220 is connected to the plurality of first lifting and positioning wheels 242 and the second lifting and positioning wheel 243. The rotation axis of the first lifting and positioning wheel 242 is set parallel to the lifting beam 220, and the opposite sides of the plurality of first lifting and positioning wheels 242 are all in contact with the column 120. The rotation axis of the second lifting and positioning wheel 243 is set parallel to the two-way travel direction and is in contact with the column 120, thereby avoiding hard friction between the vertical plate 241 and the column 120.

[0032] like Figure 5 As shown, the transverse movement assembly 300 in this embodiment includes two transverse movement guide rails 310 arranged in parallel and connected to the gantry 100, two guide rail boxes 320 slidingly connected to the two transverse movement guide rails 310 respectively, a transverse movement beam 330 connecting the two guide rail boxes 320, and a driving member 340 installed on the transverse movement beam 330 and connected to the transverse movement guide rails 310.

[0033] In one embodiment, the driving member 340 includes a second motor 341, a second reducer 342, a horizontally arranged transverse main shaft 343 and two traveling wheels 344. The second motor 341 and the second reducer 342 are both installed on the transverse beam 330. The output end of the second motor 341 is connected to the transverse main shaft 343 via the second reducer 342. The two ends of the transverse main shaft 343 extend to grooves formed on the two guide rail boxes 320 respectively, and are rotatably connected to the two guide rail boxes 320. The two traveling wheels 344 are respectively arranged in two grooves and connected to the transverse main shaft 343. The bottom of the traveling wheel 344 abuts against the transverse guide rail 310.

[0034] In order to improve the sliding stability of the guide rail box 320 , at least two transverse positioning wheels 350 are installed on each guide rail box 320 , and opposite sides of the two transverse positioning wheels 350 are respectively abutted against two sides of the transverse guide rail 310 .

[0035] The anti-collision assembly 400 in this embodiment includes a guardrail 410, two levers 420 and a displacement sensor 430. The guardrail 410 is arranged along the bidirectional travel direction and extends bidirectionally to the outside of the gantry 100. The guardrail 410 is slidably connected to the gantry 100. The two levers 420 are relatively installed on the guardrail 410. The displacement sensor 430 is connected to the gantry 100. The detection end of the displacement sensor 430 is set between the two levers 420. The guardrail 410 can drive the lever 420 to slide relative to the gantry 100. When the displacement sensor 430 abuts against the lever 420, the transverse movement assembly 300 stops moving.

[0036] In one embodiment, the guardrail 410 is annular. Of course, in other embodiments, the guardrail 410 can also be replaced by a triangle or other shapes.

[0037] In one embodiment, the two levers 420 are in contact with each other, and the outer diameters of the two levers 420 gradually expand in opposite directions. The displacement sensor 430 is a contact switch, which is triangular in shape and has a tip facing the position between the two levers 420 .

[0038] like Figure 2 As shown, in one embodiment, it further includes a first restoring member 440 and a second restoring member 450 , the guardrail 410 is connected to the gantry 100 via the first restoring member 440 , and the guardrail 410 is connected to the transverse movement assembly 300 via the second restoring member 450 .

[0039] The first return member 440 in this embodiment includes two first limit blocks 441 and two first return springs 442, the two first limit blocks 441 are fixedly connected to the gantry 100, the guardrail 410 passes through the two first limit blocks 441 and is slidably connected with the two first limit blocks 441 along the bidirectional travel direction, the two first return springs 442 are both sleeved on the guardrail 410, the opposite sides of the two first return springs 442 are respectively connected to the opposite sides of the two levers 420, and the opposite sides of the two first return springs 442 are respectively connected to the two first limit blocks 441.

[0040] The second return member 450 in this embodiment includes a connecting sleeve 451, two first limit blocks 441 and two first return springs 442. The connecting sleeve 451 is fixed on the guardrail 410. The two second limit blocks 452 are fixedly connected to the guide rail box 320. The guardrail 410 passes through the two second limit blocks 452 and is slidably connected with the two second limit blocks 452 along the bidirectional travel direction. The two second return springs 453 are both sleeved on the guardrail 410. The opposite sides of the two second return springs 453 are respectively connected to the two ends of the connecting sleeve 451, and the opposite sides of the two second return springs 453 are respectively connected to the two second limit blocks 452.

[0041] Compared with the prior art: the gantry 100 can be driven to move by the transverse movement component 300. When two adjacent gantries 100 tend to collide, since the guardrail 410 extends outside the gantry 100, the guardrail 410 is hit first, driving the lever 420 to move and abut against the displacement sensor 430, and the transverse movement component 300 stops moving, which can effectively avoid collision between the gantries 100.

[0042] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention.

Claims

1. A gantry crane for a PCB electroplating line, characterized in that: include: A gantry, which has two directions of travel; A lifting assembly, which is installed on the gantry and has a lifting end connected to the flying bus, and is used to drive the flying bus to rise and fall; A transverse movement assembly is installed at the bottom of the gantry and is used to drive the gantry to move along a bidirectional travel direction; An anti-collision component includes a guardrail, two levers and a displacement sensor. The guardrail is arranged along the two-way travel direction and extends in both directions to the outside of the gantry. The guardrail is slidably connected to the gantry. The two levers are relatively installed on the guardrail. The displacement sensor is connected to the gantry. The detection end of the displacement sensor is arranged between the two levers. The guardrail can drive the lever to slide relative to the gantry. When the displacement sensor abuts against the lever, the transverse movement component stops moving.

2. The gantry crane for the PCB electroplating line according to claim 1, characterized in that: The lifting assembly includes a winding member, a lifting beam and at least two hooks. The winding member is installed on the gantry, and the output end of the winding member is connected to the lifting beam. At least two hooks for connecting with the flying bus are installed at the bottom of the lifting beam.

3. The gantry crane for the PCB electroplating line according to claim 2, characterized in that: The winding member includes a first motor, a first reducer, a horizontally arranged lifting spindle, a reel and a belt. The first motor and the first reducer are both installed on the top of the gantry. The lifting spindle is rotatably connected to the gantry. The output end of the first motor is connected to the lifting spindle via the first reducer. The reel is coaxially sleeved on the lifting spindle. One end of the belt is connected to the reel, and the other end of the belt is connected to the lifting beam.

4. The gantry crane for the PCB electroplating line according to claim 2, characterized in that: There are three hooks, two of which are arranged at the bottom of one side of the lifting beam, and another hook is arranged at the bottom of the other side of the lifting beam, and a V-shaped groove is formed on the top of the hook.

5. The gantry crane for the PCB electroplating line according to claim 2, characterized in that: The lifting assembly further comprises a lifting positioning member, and both sides of the lifting beam are respectively slidably connected to the gantry via two lifting positioning members.

6. The gantry crane for the PCB electroplating line according to claim 1, characterized in that: The transverse movement assembly includes two transverse movement guide rails arranged in parallel and connected to the gantry, two guide rail boxes respectively connected in a sliding manner to the two transverse movement guide rails, a transverse movement beam connecting the two guide rail boxes, and a driving member installed on the transverse movement beam and connected to the transverse movement guide rails.

7. The gantry crane for the PCB electroplating line according to claim 6, characterized in that: The driving member includes a second motor, a second reducer, a horizontally arranged transverse main shaft and two traveling wheels. The second motor and the second reducer are both installed on the transverse beam. The output end of the second motor is connected to the transverse main shaft via the second reducer. The two ends of the transverse main shaft respectively extend to grooves formed on the two guide rail boxes and are rotatably connected to the two guide rail boxes. The two traveling wheels are respectively arranged in the two grooves and connected to the transverse main shaft. The bottom of the traveling wheel abuts against the transverse guide rail.

8. The gantry crane for the PCB electroplating line according to claim 1, characterized in that: The guardrail is ring-shaped.

9. The gantry crane for the PCB electroplating line according to claim 1, characterized in that: The two levers are in contact with each other, and the outer diameters of the two levers gradually expand in opposite directions. The displacement sensor is a contact switch, which is triangular in shape and has a tip facing the position between the two levers.

10. The gantry crane for the PCB electroplating line according to claim 1, characterized in that: It also includes a first resetting member and a second resetting member, wherein the guardrail is connected to the gantry via the first resetting member, and the guardrail is connected to the transverse movement assembly via the second resetting member.

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