CN113552417A - Loop impedance test system - Google Patents
Loop impedance test system Download PDFInfo
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- CN113552417A CN113552417A CN202110788347.7A CN202110788347A CN113552417A CN 113552417 A CN113552417 A CN 113552417A CN 202110788347 A CN202110788347 A CN 202110788347A CN 113552417 A CN113552417 A CN 113552417A
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- 238000012360 testing method Methods 0.000 title claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 166
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 238000007664 blowing Methods 0.000 claims description 16
- 238000010521 absorption reaction Methods 0.000 claims description 14
- 238000004140 cleaning Methods 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 7
- 238000010276 construction Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 244000309464 bull Species 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B13/00—Accessories or details of general applicability for machines or apparatus for cleaning
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B08—CLEANING
- B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
- B08B5/00—Cleaning by methods involving the use of air flow or gas flow
- B08B5/04—Cleaning by suction, with or without auxiliary action
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Sampling And Sample Adjustment (AREA)
- Cleaning In General (AREA)
Abstract
The invention discloses a loop impedance testing system, which comprises a box body, wherein one side of the box body is movably connected with a box door, two reels are arranged in the box body, two sides of each reel are fixedly connected with a rotating rod, the other end of each rotating rod is movably connected onto the inner walls of two sides of the box body through a bearing, a processing table is arranged below each reel, two sides of each processing table are fixedly connected with a connecting block, the other side of each connecting block is fixedly connected with a sliding block, the inner walls of two sides of the box body are respectively provided with a sliding groove matched with the sliding block, the sliding blocks are positioned in the sliding grooves, the inner walls of the bottoms of two sides of the box body are respectively and fixedly connected with a first motor, a steel wire rope is wound on an output shaft of the first motor, the other side of the steel wire rope bypasses the reels and is fixedly connected with the top of the processing table, and the loop impedance testing system has the advantages of preventing dust from being adhered to a circuit board, and can clamp circuit boards of different sizes.
Description
Technical Field
The invention relates to the technical field of loop resistance testing, in particular to a loop impedance testing system.
Background
In various switchgear, contact resistance is increased due to oxidation of a contact surface, poor contact fastening, and the like, and when a large current flows, the temperature of a contact point is increased, which further accelerates the oxidation of the contact surface, further increases the contact resistance, and serious accidents are caused continuously, so that it is necessary to measure the contact resistance frequently or periodically.
The existing loop test can use a loop resistance tester to test, but when the switch equipment is tested, the shell of the switch equipment needs to be detached, so that a circuit board in the switch equipment is easy to be contaminated by dust, the service life of the circuit board is influenced, and when a larger circuit board is tested, the circuit board needs to be supported by a plurality of persons, so that the test convenience of the switch equipment is reduced, and therefore, in order to correct the defects, a loop impedance test system is provided.
Disclosure of Invention
The technical problem to be solved by the invention is that the shell of the switch equipment needs to be disassembled, so that the circuit board of the switch equipment is easy to be polluted by dust, the service life of the circuit board is influenced, and when a larger circuit board is tested, the circuit board needs to be supported by a plurality of persons, so that the defects of test convenience of the switch equipment and the like are reduced, and the loop impedance test system is provided. The loop impedance test system has the characteristics that dust is prevented from being adhered to the circuit board, the circuit boards with different sizes can be clamped, and therefore testing of testers can be facilitated.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a loop impedance test system, includes the box, one side swing joint of box has the chamber door, just be equipped with two reels in the box, the both sides fixedly connected with bull stick of reel, the other end of bull stick passes through bearing swing joint on the both sides inner wall of box, the below of reel is equipped with the processing platform, the equal fixedly connected with connecting block in both sides of processing platform, the opposite side fixedly connected with slider of connecting block, all seted up on the both sides inner wall of box with slider assorted spout, the slider is located the spout, equal first motor of fixedly connected with on the both sides bottom inner wall of box.
A steel wire rope is wound on the output shaft of the first motor, the other side of the steel wire rope bypasses the reel, and is fixedly connected with the top of the processing table, a first L-shaped block is arranged above the first motor, the first L-shaped block is fixedly connected on the inner wall of the box body, the top of the first L-shaped block is fixedly connected with a transverse block, the inner wall of the bottom of the box body is fixedly connected with a dust suction bin, a hydraulic cylinder is fixedly connected with the inner wall of the bottom of the dust collection bin, a support plate is fixedly connected with an output shaft of the hydraulic cylinder, a first gear is arranged above the support plate, and a circular groove is arranged in the supporting plate, a rotating block is arranged in the circular groove, the top of the rotating block is fixedly connected with a connecting rod, the top of the connecting rod penetrates through the top of the supporting plate, and fixed connection is in the bottom of first gear, the bottom fixedly connected with second motor of backup pad.
The output shaft of second motor runs through the backup pad to fixedly connected with second gear, the second gear meshes with first gear mutually, one side that first gear was kept away from to the second gear is equipped with loop resistance tester, loop resistance tester fixed connection is at the top of backup pad, the top fixedly connected with riser of first gear, the preceding terminal surface of riser is equipped with stop gear, the rectangle mouth that equals with the backup pad width all is seted up on dust absorption storehouse and the processing bench, just be equipped with first dust removal mechanism on the dust absorption storehouse, the top of processing bench is equipped with the second dust removal mechanism.
Preferably, the limiting mechanism comprises a limiting pipe, the limiting pipe is fixedly connected to the front end face of the vertical plate, a first limiting groove is formed in the vertical plate, a first limiting block is arranged in the first limiting groove, a first limiting rod is fixedly connected to one side of the first limiting block, which is close to the limiting pipe, the first limiting rod penetrates through the first limiting groove and penetrates through the limiting pipe, a positioning plate is fixedly connected to the other end of the first limiting rod, a plurality of second limiting grooves are fixedly connected to the rear side wall of the positioning plate, a second limiting block is arranged in the second limiting groove, a first spring is fixedly connected between the second limiting block and the inner wall of the second limiting groove, a second limiting rod is fixedly connected to one side of the second limiting block, which is far away from the first spring, the tail end of the second limiting rod is arranged in an arc-shaped end, and a circular ring is fixedly connected to the pipe body of the limiting pipe, the utility model discloses a fixing device for fixing a pole, including locating plate, ring, second spacing groove, the equal a pair of fixed block of fixedly connected with on the both sides wall of locating plate, the ring is close to one side of second spacing groove and has seted up a plurality of circular slot, it is every right to equal a pair of fixed block of fixedly connected with on the both sides wall of locating plate be equipped with a pair of second L-shaped piece between the fixed block, two round holes have been seted up on the second L-shaped piece, the dead lever has been passed in the round hole, the both ends fixed connection of dead lever is at the lateral wall of fixed block, the through-hole has been seted up on the second L-shaped piece, it has the horizontal pole to pass in the through-hole, the one end fixedly connected with movable block of keeping away from the locating plate of horizontal pole, just the other end fixedly connected with grip block of horizontal pole, fixedly connected with second spring between the lateral wall of grip block and second L-shaped piece, the second spring winding is on the shaft of horizontal pole.
Preferably, two pairs of the second L-shaped blocks are symmetrically arranged about the central axis of the positioning plate.
Preferably, the diameter of the second limiting block is equal to the diameter of the inner cavity of the second limiting groove.
Preferably, the first dust cleaning mechanism comprises an air blowing bin, the air blowing bin is fixedly connected to the side wall of the dust suction bin, a fan is fixedly connected in the air blowing bin, a plurality of air guide pipes are fixedly connected to one side, close to the dust suction bin, of the air blowing bin, the other ends of the air guide pipes penetrate through the side wall of the dust suction bin, a fixing plate is fixedly connected to the side wall of the box body, a first dust suction pump and the dust suction bin are fixedly connected to the top of the fixing plate, a water inlet pipe is fixedly connected to the side wall of the dust suction bin, a water outlet pipe is fixedly connected to the side wall of the bottom of the dust suction bin, a valve is mounted on the water outlet pipe, a first dust suction pipe and a first dust guide pipe are respectively and fixedly connected to the first dust suction pump, a vertical pipe is fixedly connected to the side wall, far away from the air blowing bin, of the vertical pipe, a plurality of second dust suction pipes are fixedly connected to one side of the vertical pipe, and the other ends of the second dust suction pipes penetrate through the side wall of the dust suction bin, the other end of the first dust suction pipe is fixedly connected to the pipe body of the vertical pipe, and the other end of the first dust guide pipe is fixedly connected to the side wall of the dust collection bin.
Preferably, the second dust cleaning mechanism comprises a third motor, the third motor is fixedly connected to the inner wall of the box body, a threaded block is arranged on one side of the third motor, a third dust suction pipe is fixedly connected to the bottom of the threaded block, a dust suction groove is fixedly connected to the bottom end of the third dust suction pipe, a dust suction port is formed in the bottom of the dust suction groove, a positioning hole and a threaded hole are formed in the threaded block, a positioning rod penetrates through the positioning hole, two ends of the positioning rod are respectively and fixedly connected to the inner walls of two sides of the box body, the threaded hole is in threaded connection with a threaded rod, one end of the threaded rod is fixedly connected to an output shaft of the third motor, the other end of the threaded rod is movably connected to the side wall of the box body through a bearing, a second dust suction pump is fixedly connected to the inner wall of the box body, which is far away from the third motor, and a fourth dust suction pipe and a second dust guide pipe are fixedly connected to the second dust suction pump, the fourth dust collection pipe is of a hose structure and is fixedly connected to one side of the third dust collection pipe, and a pipe orifice at the other end of the second dust guide pipe is fixedly connected to the top of the dust collection bin.
Preferably, the front end face of the box door is fixedly connected with a rectangular block, the length and the width of the rectangular block are equal to those of the inner cavity of the box body, a sealing gasket is arranged on the side wall of the rectangular block, and the sealing gasket is of a rubber gasket structure.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the second dust cleaning mechanism can be used for cleaning dust on the processing table, the first dust cleaning mechanism can be used for cleaning dust on the limiting mechanism, and the rectangular block and the sealing gasket are matched to prevent dust from entering the box body, so that the dust can be prevented from being adhered to the circuit board when the circuit board is tested;
2. according to the invention, circuit boards with different volumes can be clamped through the matching of the second L-shaped block, the fixed rod, the movable block and the clamping block, so that the circuit boards are prevented from being manually supported, and the convenience of impedance detection is improved.
Drawings
FIG. 1 is a front view of the present invention;
FIG. 2 is a top view of the housing and reel of the present invention;
FIG. 3 is a side view of the locating plate, riser, first gear and support block of the present invention;
FIG. 4 is a timing diagram of the circular groove, the stop tube, the circular ring and the vertical plate of FIG. 3;
FIG. 5 is a structural view of the support plate and the positioning plate after they have been raised;
FIG. 6 is an enlarged view taken at A in FIG. 1;
fig. 7 is an enlarged view of fig. 3 at B.
Reference numbers in the figures: 1. a box body; 2. a box door; 3. a reel; 4. a rotating rod; 5. a processing table; 6. connecting blocks; 7. a first motor; 8. a wire rope; 9. a first L-shaped block; 10. a transverse block; 11. a dust collection bin; 12. a hydraulic cylinder; 13. a support plate; 14. a first gear; 15. a circular groove; 16. rotating the block; 17. a second motor; 18. a second gear; 19. a loop resistance tester; 20. a vertical plate; 21. a limiting pipe; 22. a first limit groove; 23. a first stopper; 24. a second limiting block; 25. a first spring; 26. a second limiting rod; 27. a circular ring; 28. a circular groove; 29. a fixed block; 30. a second L-shaped block; 31. fixing the rod; 32. a cross bar; 33. a movable block; 34. a clamping block; 35. a second spring; 36. a blowing bin; 37. a fan; 38. an air guide pipe; 39. a fixing plate; 40. a first dust suction pump; 41. a dust collection bin; 42. a first dust suction pipe; 43. a first dust guide pipe; 44. a vertical tube; 45. a second dust suction pipe; 46. a third motor; 47. a thread block; 48. a third dust suction pipe; 49. a dust collection groove; 50. positioning a rod; 51. a threaded rod; 52. a second dust suction pump; 53. a fourth dust suction pipe; 54. a second dust guide pipe; 55. a rectangular block; 56. a second limit groove; 57. a first limit rod; 58. and (7) positioning the plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-7, a box door 2 is movably connected to one side of a box body 1 of the present invention, a rectangular block 55 is fixedly connected to a front end surface of the box door 2, the length and width of the rectangular block 55 are equal to those of an inner cavity of the box body 1, and a sealing pad is disposed on a side wall of the rectangular block 55. The sealing gasket is of a rubber gasket structure, so that dust is prevented from entering the box body 1, and the circuit board is prevented from being polluted by the dust.
Two reels 3 are arranged in the box body 1, two sides of each reel 3 are fixedly connected with rotating rods 4, and the other ends of the rotating rods 4 are movably connected to the inner walls of the two sides of the box body 1 through bearings.
A processing table 5 is arranged below the reel 3, connecting blocks 6 are fixedly connected to two sides of the processing table 5, and a sliding block is fixedly connected to the other side of each connecting block 6. The inner walls of the two sides of the box body 1 are provided with sliding grooves matched with the sliding blocks, and the sliding blocks are located in the sliding grooves and can slide along the inner walls of the sliding grooves.
The inner walls of the bottoms of the two sides of the box body 1 are fixedly connected with first motors 7, steel wire ropes 8 are wound on output shafts of the first motors 7, and the other sides of the steel wire ropes 8 bypass the reels 3 and are fixedly connected with the tops of the processing tables 5. Meanwhile, a first L-shaped block 9 is arranged above the first motor 7, the first L-shaped block 9 is fixedly connected to the inner wall of the box body 1, and a transverse block 10 is fixedly connected to the top of the first L-shaped block 9.
The inner wall of the bottom of the box body 1 is fixedly connected with a dust collection bin 11, the inner wall of the bottom of the dust collection bin 11 is fixedly connected with a hydraulic cylinder 12, and an output shaft of the hydraulic cylinder 12 is fixedly connected with a support plate 13. A first gear 14 is arranged above the support plate 13, and a circular groove 15 is formed in the support plate 13. A rotating block 16 is arranged in the circular groove 15, a connecting rod is fixedly connected to the top of the rotating block 16, and the top of the connecting rod penetrates through the top of the support plate 13 and is fixedly connected to the bottom of the first gear 14.
The bottom of the supporting plate 13 is fixedly connected with a second motor 17, an output shaft of the second motor 17 penetrates through the supporting plate 13 and is fixedly connected with a second gear 18, and the second gear 18 is meshed with the first gear 14. A loop resistance tester 19 is arranged on one side of the second gear 18 far away from the first gear 14, and the loop resistance tester 19 is fixedly connected to the top of the supporting plate 13. The top fixedly connected with riser 20 of first gear 14, the preceding terminal surface of riser 20 is equipped with stop gear.
The limiting mechanism comprises a limiting pipe 21, and the limiting pipe 21 is fixedly connected to the front end face of the vertical plate 20. A first limiting groove 22 is formed in the vertical plate 20, a first limiting block 23 is arranged in the first limiting groove 22, and a first limiting rod 57 is fixedly connected to one side, close to the limiting pipe 21, of the first limiting block 23. The first limiting rod 57 penetrates through the first limiting groove 22 and penetrates through the limiting pipe 21, and the other end of the first limiting rod 57 is fixedly connected with a positioning plate 58. The rear side wall of the positioning plate 58 is fixedly connected with a plurality of second limiting grooves 56, and second limiting blocks 24 are arranged in the second limiting grooves 56.
The diameter of the second stopper 24 is equal to the diameter of the inner cavity of the second stopper groove 56, so that the stability of the positioning plate 58 is improved. A first spring 25 is fixedly connected between the second limiting block 24 and the inner wall of the second limiting groove 56, and a second limiting rod 26 is fixedly connected to one side of the second limiting block 24 away from the first spring 25. The end of the second limiting rod 26 is an arc-shaped end, a circular ring 27 is fixedly connected to the tube body of the limiting tube 21, and a plurality of circular grooves 28 are formed in one side, close to the second limiting groove 56, of the circular ring 27.
A pair of fixing blocks 29 is fixedly connected to both side walls of the positioning plate 58, and a pair of second L-shaped blocks 30 is arranged between each pair of fixing blocks 29. Two pairs of second L-shaped blocks 30 are symmetrically disposed about the central axis of the positioning plate 58 to facilitate the inspection of circuit boards of different sizes.
Two round holes are formed in the second L-shaped block 30, a fixing rod 31 penetrates through the round holes, two ends of the fixing rod 31 are fixedly connected to the side wall of the fixing block 29, a through hole is formed in the second L-shaped block 30, a cross rod 32 penetrates through the through hole, and a movable block 33 is fixedly connected to one end, far away from the positioning plate 58, of the cross rod 32. The other end of the cross bar 32 is fixedly connected with a clamping block 34, and a second spring 35 is fixedly connected between the clamping block 34 and the side wall of the second L-shaped block 30. Second spring 35 twines on the shaft of horizontal pole 32, can carry out the centre gripping to the not unidimensional circuit board through stop gear to liberation personnel's both hands, so that measurement personnel detect the circuit board.
Rectangular openings with the width equal to that of the supporting plate 13 are formed in the dust collection bin 11 and the processing table 5, and a first dust cleaning mechanism is arranged on the dust collection bin 11. The first dust cleaning mechanism comprises an air blowing bin 36, the air blowing bin 36 is fixedly connected to the side wall of the dust suction bin 11, a fan 37 is fixedly connected in the air blowing bin 36, and a plurality of air guide pipes 38 are fixedly connected to one side, close to the dust suction bin 11, of the air blowing bin 36. The other end of the air duct 38 penetrates through the side wall of the dust collection bin 11, a fixing plate 39 is fixedly connected to the side wall of the box body 1, and a first dust collection pump 40 and a dust collection bin 41 are fixedly connected to the top of the fixing plate 39.
The side wall of the dust collection bin 41 is fixedly connected with a water inlet pipe, the side wall of the bottom of the dust collection bin 41 is fixedly connected with a water outlet pipe, and a valve is arranged on the water outlet pipe. The first dust suction pump 40 is fixedly connected with a first dust suction pipe 42 and a first dust guide pipe 43, respectively, and the side wall of the dust suction chamber 11 far away from the air blowing chamber 36 is fixedly connected with a vertical pipe 44. One side of the vertical pipe 44 is fixedly connected with a plurality of second dust suction pipes 45, and the other ends of the second dust suction pipes 45 penetrate through the side wall of the dust suction bin 11.
The other end of the first dust suction pipe 42 is fixedly connected to the pipe body of the vertical pipe 44, and the other end of the first dust guide pipe 43 is fixedly connected to the side wall of the dust collection bin 41, so that the first dust cleaning mechanism can clean the limiting mechanism, and dust is prevented from adhering to the circuit board when the circuit board is clamped. Meanwhile, a second dust removing mechanism is arranged above the processing table 5.
The second dust removing mechanism comprises a third motor 46, the third motor 46 is fixedly connected to the inner wall of the box body 1, and a thread block 47 is arranged on one side of the third motor 46. The bottom of the screw block 47 is fixedly connected with a third dust suction pipe 48. The bottom end of the third dust suction pipe 48 is fixedly connected with a dust suction groove 49, the bottom of the dust suction groove 49 is provided with a dust suction port, the thread block 47 is provided with a positioning hole and a threaded hole, and a positioning rod 50 penetrates through the positioning hole. The two ends of the positioning rod 50 are respectively fixedly connected to the inner walls of the two sides of the box body 1.
Threaded hole threaded connection has threaded rod 51, threaded rod 51's one end fixed connection is on the output shaft of third motor 46, and threaded rod 51's the other end passes through bearing swing joint on the lateral wall of box 1, box 1 keeps away from fixedly connected with second dust absorption pump 52 on the inner wall of third motor 46, fixedly connected with fourth dust absorption pipe 53 and second dust guide pipe 54 on the second dust absorption pump 52, fourth dust absorption pipe 53 is hose construction, and fourth dust absorption pipe 53 fixed connection is in one side of third dust absorption pipe 48, the second is led the other end mouth of pipe fixed connection of dust guide pipe 54 and is being connected the top in dust collection bin 41, it can clean dirt to processing platform 5 to improve the second dust removal mechanism, thereby avoid dust pollution circuit board.
The working principle is as follows: when the invention is used, all the electrical equipment is externally connected with a power supply, and then the box door 2 is opened. Next, the circuit board in the electrical apparatus is taken out, and then, the two pairs of second L-shaped blocks 30 are moved until the space between each pair of second L-shaped blocks 30 is suitable for clamping the circuit board, the movable block 33 may be pulled in a direction away from the second L-shaped blocks 30, so that the clamping block 34 is away from the positioning plate 58, and the second spring 35 is stretched.
Then, the circuit board is placed between the clamping block 34 and the positioning plate 58, then the movable block 33 is released, and the clamping block 34 clamps the circuit board through the elastic reset action of the second spring 35; when the locating plate 58 needs to be rotated, the locating plate 58 can be held by hand, then the locating plate 58 is rotated, then the locating plate 58 drives the second limiting groove 56 to rotate, and then the second limiting rod 26 is pushed to contract through the action of the cambered surface between the circular groove 28 and the second limiting rod 26, so that the locating plate 58 is rotated, and a better measuring circuit board is convenient.
At this time, the loop resistance tester 19 may be used to perform loop resistance detection on the circuit board, and when the detection is completed, the first motor 7 may be started, the first motor 7 tightens the wire rope 8, and then the machining table 5 is pulled by the wire rope 8 to move upward until the machining table 5 rises to the lower side of the dust suction groove 49, and the second dust suction pump 52 is started. The second dust suction pump 52 absorbs the dust above the processing table 5 through the cooperation between the fourth dust suction pipe 53, the third dust suction pipe 48 and the dust suction groove 49, and guides the dust into the dust collection bin 41 filled with water through the second dust guide pipe 54; then, the third motor 46 can be started, the third motor 46 drives the threaded rod 51 to rotate, and then the threaded block 47 is driven to reciprocate through the thread action between the threaded hole and the threaded rod 51, so that the cleaning effect of the processing table 5 can be improved.
Meanwhile, the hydraulic cylinder 12 is started, and the hydraulic cylinder 12 drives the supporting plate 13 and the positioning plate 58 to move into the dust collection bin 11. Then, the first dust suction pump 40 and the fan 37 can be started, and then air is blown by the fan 37 and blown into the dust suction box 11 through the air guide pipe 38, so that dust on the positioning plate 58 can be blown off. Meanwhile, the first dust suction pump 40 is engaged with the first dust suction pipe 42, the vertical pipe 44 and the second dust suction pipe 45 to suck dust in the dust suction chamber 11, and the dust is guided into the dust collection chamber 41 filled with water through the first dust guide pipe 43. When needing to carry out the dust removal to other faces of locating plate 58, start second motor 17, second motor 17 drives second gear 18 and rotates, then through the meshing effect between second gear 18 and the first gear 14, drive first gear 14, riser 20 and locating plate 58 and rotate, then can blow other faces of locating plate 58, thereby improve the clearance effect of locating plate 58 and grip block 34, in order to prevent next time when testing the circuit board, the dust adhesion is on the circuit board.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The utility model provides a loop impedance test system, includes box (1), sets up in one side of box (1) and swing joint's chamber door (2) and sets up two reels (3) in box (1), its characterized in that: the two sides of the reel (3) are fixedly connected with rotating rods (4), the other ends of the rotating rods (4) are movably connected to the inner walls of the two sides of the box body (1) through bearings, a processing table (5) is arranged below the reel (3), two sides of the processing table (5) are fixedly connected with connecting blocks (6), and the other side of each connecting block (6) is fixedly connected with a sliding block; the inner walls of two sides of the box body (1) are respectively provided with a sliding groove matched with the sliding block, the sliding blocks are positioned in the sliding grooves, the inner walls of the bottoms of the two sides of the box body (1) are respectively and fixedly connected with a first motor (7), an output shaft of the first motor (7) is wound with a steel wire rope (8), the other side of the steel wire rope (8) bypasses a reel (3) and is fixedly connected to the top of the processing table (5), a first L-shaped block (9) is arranged above the first motor (7), the first L-shaped block (9) is fixedly connected to the inner wall of the box body (1), and the top of the first L-shaped block (9) is fixedly connected with a transverse block (10); a dust collection bin (11) is fixedly connected to the inner wall of the bottom of the box body (1), a hydraulic cylinder (12) is fixedly connected to the inner wall of the bottom of the dust collection bin (11), a support plate (13) is fixedly connected to an output shaft of the hydraulic cylinder (12), a first gear (14) is arranged above the support plate (13), a circular groove (15) is further formed in the support plate (13), a rotating block (16) is arranged in the circular groove (15), a connecting rod is fixedly connected to the top of the rotating block (16), and the top of the connecting rod penetrates through the top of the support plate (13) and is fixedly connected to the bottom of the first gear (14); the utility model discloses a dust collection device, including backup pad (13), bottom fixedly connected with second motor (17) of backup pad (13), the output shaft of this second motor (17) runs through backup pad (13) and fixedly connected with second gear (18), second gear (18) mesh with first gear (14) mutually, and one side that first gear (14) were kept away from in this second gear (18) is equipped with loop resistance tester (19), loop resistance tester (19) fixed connection is at the top of backup pad (13), the top fixedly connected with riser (20) of first gear (14), the preceding terminal surface of riser (20) is equipped with stop gear, all set up the rectangle mouth that equals with backup pad (13) width on dust collection storehouse (11) and processing platform (5), just be equipped with first dust removal mechanism on dust collection storehouse (11), the top of processing platform (5) is equipped with second dust removal mechanism.
2. The loop impedance testing system of claim 1, wherein: the limiting mechanism comprises a limiting pipe (21), the limiting pipe (21) is fixedly connected with the front end face of a vertical plate (20), a first limiting groove (22) is formed in the vertical plate (20), a first limiting block (23) is arranged in the first limiting groove (22), a first limiting rod (57) is fixedly connected with one side, close to the limiting pipe (21), of the first limiting block (23), the first limiting rod (57) penetrates through the first limiting groove (22) and penetrates through the limiting pipe (21), a positioning plate (58) is fixedly connected with the other end of the first limiting rod (57), a plurality of second limiting grooves (56) are fixedly connected with the rear side wall of the positioning plate (58), second limiting blocks (24) are arranged in the second limiting grooves (56), and first springs (25) are fixedly connected between the second limiting blocks (24) and the inner walls of the second limiting grooves (56), a second limiting rod (26) is fixedly connected to one side, far away from the first spring (25), of the second limiting block (24), the tail end of the second limiting rod (26) is arranged in an arc-shaped end mode, a circular ring (27) is fixedly connected to the tube body of the limiting tube (21), a plurality of circular grooves (28) are formed in one side, close to the second limiting groove (56), of the circular ring (27), a pair of fixing blocks (29) are fixedly connected to two side walls of the positioning plate (58), a pair of second L-shaped blocks (30) are arranged between every pair of fixing blocks (29), two circular holes are formed in each second L-shaped block (30), a fixing rod (31) penetrates through each circular hole, two ends of each fixing rod (31) are fixedly connected to the side wall of each fixing block (29), a through hole is formed in each second L-shaped block (30), a cross rod (32) penetrates through each through hole, and a movable block (33) is fixedly connected to one end, far away from the positioning plate (58), of each cross rod (32), and the other end of the cross rod (32) is fixedly connected with a clamping block (34), a second spring (35) is fixedly connected between the clamping block (34) and the side wall of the second L-shaped block (30), and the second spring (35) is wound on the rod body of the cross rod (32).
3. The loop impedance testing system of claim 2, wherein: the two pairs of second L-shaped blocks (30) are symmetrically arranged about the central axis of the positioning plate (58).
4. The loop impedance testing system of claim 2, wherein: the diameter of the second limiting block (24) is equal to the diameter of the inner cavity of the second limiting groove (56).
5. The loop impedance testing system of claim 1, wherein: the first dust cleaning mechanism comprises a blowing bin (36), the blowing bin (36) is fixedly connected to the side wall of the dust collection bin (11), a fan (37) is fixedly connected in the blowing bin (36), a plurality of air guide pipes (38) are fixedly connected to one side, close to the dust collection bin (11), of the blowing bin (36), the other ends of the air guide pipes (38) penetrate through the side wall of the dust collection bin (11), a fixing plate (39) is fixedly connected to the side wall of the box body (1), a first dust suction pump (40) and a dust collection bin (41) are fixedly connected to the top of the fixing plate (39), a water inlet pipe is fixedly connected to the side wall of the dust collection bin (41), a water outlet pipe is fixedly connected to the side wall of the bottom of the dust collection bin (41), a valve is installed on the water outlet pipe, a first dust suction pipe (42) and a first dust guide pipe (43) are fixedly connected to the first dust suction pump (40) respectively, the dust collection device is characterized in that a vertical pipe (44) is fixedly connected to the side wall, far away from the blowing bin (36), of the dust collection bin (11), a plurality of second dust collection pipes (45) are fixedly connected to one side of the vertical pipe (44), the other ends of the second dust collection pipes (45) penetrate through the side wall of the dust collection bin (11), the other end of the first dust collection pipe (42) is fixedly connected to the pipe body of the vertical pipe (44), and the other end of the first dust guide pipe (43) is fixedly connected to the side wall of the dust collection bin (41).
6. The loop impedance testing system of claim 5, wherein: the second dust cleaning mechanism comprises a third motor (46), the third motor (46) is fixedly connected to the inner wall of the box body (1), a threaded block (47) is arranged on one side of the third motor (46), a third dust suction pipe (48) is fixedly connected to the bottom of the threaded block (47), a dust suction groove (49) is fixedly connected to the bottom of the third dust suction pipe (48), a dust suction opening is formed in the bottom of the dust suction groove (49), a positioning hole and a threaded hole are formed in the threaded block (47), a positioning rod (50) penetrates through the positioning hole, two ends of the positioning rod (50) are respectively and fixedly connected to the inner walls of two sides of the box body (1), a threaded rod (51) is connected to the threaded hole in a threaded manner, one end of the threaded rod (51) is fixedly connected to an output shaft of the third motor (46), and the other end of the threaded rod (51) is movably connected to the side wall of the box body (1) through a bearing, fixedly connected with second dust absorption pump (52) on the inner wall of third motor (46) is kept away from in box (1), fixedly connected with fourth dust absorption pipe (53) and second lead dirt pipe (54) on second dust absorption pump (52), fourth dust absorption pipe (53) are hose construction, just fourth dust absorption pipe (53) fixed connection is in one side of third dust absorption pipe (48), the other end mouth of pipe fixed connection of second lead dirt pipe (54) is at the top of dust collection bin (41).
7. The loop impedance testing system of claim 1, wherein: the front end face of the box door (2) is fixedly connected with a rectangular block (55), the length and the width of the rectangular block (55) are equal to those of the inner cavity of the box body (1), a sealing gasket is arranged on the side wall of the rectangular block (55), and the sealing gasket is of a rubber gasket structure.
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| CN202110788347.7A CN113552417B (en) | 2021-07-13 | 2021-07-13 | Loop impedance test system |
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| CN202110788347.7A CN113552417B (en) | 2021-07-13 | 2021-07-13 | Loop impedance test system |
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| CN113552417B (en) | 2023-12-29 |
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