CN113552417B - Loop impedance test system - Google Patents
Loop impedance test system Download PDFInfo
- Publication number
- CN113552417B CN113552417B CN202110788347.7A CN202110788347A CN113552417B CN 113552417 B CN113552417 B CN 113552417B CN 202110788347 A CN202110788347 A CN 202110788347A CN 113552417 B CN113552417 B CN 113552417B
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- fixedly connected
- dust collection
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- pipe
- dust
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- 238000012360 testing method Methods 0.000 title claims abstract description 18
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 239000000428 dust Substances 0.000 claims description 163
- 238000010521 absorption reaction Methods 0.000 claims description 22
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 238000005422 blasting Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 description 5
- 238000007664 blowing Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 244000309464 bull Species 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
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007689 inspection 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
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
-
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Cleaning In General (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The invention discloses a loop impedance testing system which comprises a box body, wherein a box door is movably connected to one side of the box body, two reels are arranged in the box body, two sides of each reel are fixedly connected with rotating rods, the other ends of the rotating rods are movably connected to the inner walls of the two sides of the box body through bearings, a processing table is arranged below each reel, two sides of each processing table are fixedly connected with connecting blocks, the other sides of the connecting blocks are fixedly connected with sliding blocks, sliding grooves matched with the sliding blocks are formed in the inner walls of the two sides of the box body, the sliding blocks are positioned in the sliding grooves, first motors are fixedly connected to the inner walls of the bottoms of the two sides of the box body, steel wire ropes are wound on output shafts of the first motors, and the other sides of the steel wire ropes bypass the reels and are fixedly connected with the tops of the processing tables.
Description
Technical Field
The invention relates to the technical field of loop resistance testing, in particular to a loop impedance testing system.
Background
Various switch devices have increased contact resistance due to oxidation of contact surfaces, poor contact fastening and the like, and when a large current flows, the temperature of contact points rises, so that the contact resistance is further increased by oxidation of the contact surfaces, serious accidents continue to occur, and therefore, the contact resistance needs to be measured frequently or regularly.
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 disassembled, so that the circuit board in the switch equipment is easy to be stained with dust, the service life of the circuit board is influenced, and when the larger circuit board is tested, a plurality of people are required to support, 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 problems to be solved by the invention are that the shell of the switch equipment needs to be disassembled, so that the circuit board of the switch equipment is easy to be stained with dust, the service life of the circuit board is influenced, and when the larger circuit board is tested, the circuit board needs to be supported by multiple people, so that the testing convenience of the switch equipment is reduced, and the like. The loop impedance test system has the characteristics of avoiding dust from adhering to the circuit board, clamping the circuit boards with different sizes, facilitating the test of testers and the like.
In order to achieve the above purpose, the present invention provides the following technical solutions: 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 fixedly connected with first motor on the both sides bottom inner wall of box.
The utility model discloses a dust collection device for the electric motor, including the first motor, the wire rope has been twined on the output shaft of first motor, the wire rope opposite side has walked around the reel to the top of fixedly connected with processing platform, the top of first motor is equipped with first L shape piece, first L shape piece fixedly connected with is on the inner wall of box, just the top fixedly connected with of first L shape piece is violently segmented, fixedly connected with dust absorption storehouse on the bottom inner wall of box, the bottom inner wall fixedly connected with pneumatic cylinder in dust absorption storehouse, fixedly connected with backup pad on the output shaft of pneumatic cylinder, the top of backup pad is equipped with first gear, just set up the circular slot in the backup pad, be equipped with the dwang in the circular slot, the top fixedly connected with connecting rod of dwang, the top of connecting rod runs through the top of backup pad to fixedly connected with 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 fixedly connected with 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 backup pad width is all 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 second dust removal mechanism.
Preferably, the stop gear includes the spacing pipe, spacing pipe fixed connection is at the preceding terminal surface of riser, first spacing groove has been seted up in the riser, be equipped with first stopper in the first spacing groove, one side fixedly connected with first gag lever post of spacing pipe is close to first stopper, first gag lever post runs through first spacing groove to pass spacing pipe, just the other end fixedly connected with locating plate of first gag lever post, the back lateral wall fixedly connected with of locating plate a plurality of second spacing groove, be equipped with the second stopper in the second spacing groove, fixedly connected with first spring between the inner wall of second stopper and second spacing groove, one side fixedly connected with second gag lever post of first spring is kept away from to the second stopper, the end of second gag lever post is the arc end setting, fixedly connected with ring on the pipe shaft of spacing pipe, a plurality of circular slot has been seted up to one side that the second spacing groove is close to, the equal fixedly connected with a pair of fixed block on the both sides wall of locating plate, every is equipped with a pair of fixed block between the L shape fixed block, the L shape fixed block has the second lateral wall is connected with the L-shaped cross bar, the L-shaped cross bar has the fixed connection between the second lateral wall, the L-shaped cross bar has the fixed block.
Preferably, the two pairs of 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 a blasting bin, the lateral wall in dust collection bin is fixedly connected with a fan in the blasting bin, just one side fixedly connected with guide duct in the blasting bin, which is close to the dust collection bin, of the blasting bin, the other end of the guide duct penetrates through the lateral wall in the dust collection bin, the lateral wall of the box is fixedly connected with a fixing plate, the top of the fixing plate is fixedly connected with a first dust collection pump and a dust collection bin, the lateral wall in the dust collection bin is fixedly connected with a water inlet pipe, the bottom of the dust collection bin is fixedly connected with a water outlet pipe, a valve is mounted on the water outlet pipe, the first dust collection pump is fixedly connected with a first dust collection pipe and a first dust guide pipe respectively, the dust collection bin is far away from the lateral wall in the blasting bin, one side fixedly connected with a plurality of second dust collection pipe is fixedly connected with one side of the standpipe, the other end of the second dust collection pipe penetrates through the lateral wall in the dust collection bin, the other end of the first dust collection pipe is fixedly connected with the pipe body of the standpipe, and the other end of the first dust collection pipe is fixedly connected with the lateral wall of the dust collection bin.
Preferably, the second dust cleaning mechanism comprises a third motor, third motor fixed connection is on the inner wall of box, just one side of third motor is equipped with the screw thread piece, the bottom fixedly connected with third dust absorption pipe of screw thread piece, the bottom fixedly connected with dust absorption groove of third dust absorption pipe, the dust absorption mouth has been seted up to the bottom in dust absorption groove, locating hole and screw hole have been seted up on the screw thread piece, it has the locating lever to pass in the locating hole, the both ends of locating lever are fixed connection respectively on the both sides inner wall of box, screw hole threaded connection has the threaded rod, the one end fixed connection of threaded rod is on the output shaft of third motor, just the other end of threaded rod passes through bearing swing joint on the lateral wall of box, fixedly connected with second dust absorption pump on the inner wall that the third motor was kept away from to the box, fourth dust absorption pipe and second dust guide pipe are the hose structure, just fourth dust absorption pipe fixed connection is on one side of third dust absorption pipe, the other end dust guide pipe is the top of dust collection storehouse fixed connection.
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 pad structure.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, dust on the processing table can be removed through the second dust removing mechanism, dust on the limiting mechanism can be removed through the first dust removing mechanism, and the dust can be prevented from entering the box body through the cooperation between the rectangular block and the sealing gasket, so that the dust can be prevented from adhering to the circuit board when the circuit board is tested;
2. according to the invention, through the cooperation among the second L-shaped block, the fixed rod, the movable block and the clamping block, circuit boards with different volumes can be clamped, 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 case 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, spacing tube, ring and riser of FIG. 3;
FIG. 5 is a view showing the structure of the support plate and the positioning plate after being raised;
FIG. 6 is an enlarged view of FIG. 1 at A;
fig. 7 is an enlarged view at B in fig. 3.
Reference numerals in the drawings: 1. a case; 2. a door; 3. a reel; 4. a rotating rod; 5. a processing table; 6. a connecting block; 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. a rotating block; 17. a second motor; 18. a second gear; 19. a loop resistance tester; 20. a riser; 21. a limiting tube; 22. a first limit groove; 23. a first limiting block; 24. a second limiting block; 25. a first spring; 26. a second limit rod; 27. a circular ring; 28. a circular groove; 29. a fixed block; 30. a second L-shaped block; 31. a fixed rod; 32. a cross bar; 33. a movable block; 34. a clamping block; 35. a second spring; 36. a blast 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 collection pipe; 43. a first dust guide pipe; 44. a standpipe; 45. a second dust collection pipe; 46. a third motor; 47. a screw block; 48. a third dust collection pipe; 49. a dust collection groove; 50. a positioning rod; 51. a threaded rod; 52. a second dust suction pump; 53. a fourth dust collection pipe; 54. a second dust guide pipe; 55. rectangular blocks; 56. the second limit groove; 57. a first stop lever; 58. and (5) positioning the plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the 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, a length and a width of the rectangular block 55 are equal to a length and a width of an inner cavity of the box body 1, and a sealing gasket is disposed on a side wall of the rectangular block 55. The sealing gasket is of a rubber gasket structure, and dust is prevented from entering the box body 1, so that the dust is prevented from polluting the circuit board.
Two reels 3 are arranged in the box 1, two sides of each reel 3 are fixedly connected with a rotating rod 4, and the other ends of the rotating rods 4 are movably connected to the inner walls of two sides of the box 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 sliding blocks are fixedly connected to the other sides of the connecting blocks 6. Sliding grooves matched with the sliding blocks are formed in the inner walls of the two sides of the box body 1, 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 a first motor 7, a steel wire rope 8 is wound on an output shaft of the first motor 7, and the other side of the steel wire rope 8 bypasses the reel 3 and is fixedly connected with the top of the processing table 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 bottom inner wall of the box body 1 is fixedly connected with a dust collection bin 11, the bottom inner wall 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 supporting plate 13, and a circular groove 15 is formed in the supporting plate 13. The circular groove 15 is internally provided with a rotating block 16, the top of the rotating block 16 is fixedly connected with a connecting rod, and the top of the connecting rod penetrates through the top of the supporting 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. The side of the second gear 18 far away from the first gear 14 is provided with a loop resistance tester 19, and the loop resistance tester 19 is fixedly connected to the top of the supporting plate 13. The top of the first gear 14 is fixedly connected with a vertical plate 20, and the front end surface of the vertical plate 20 is provided with a limiting mechanism.
The limiting mechanism comprises a limiting tube 21, and the limiting tube 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 the limiting tube 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 limiting block 24 is equal to the diameter of the inner cavity of the second limiting groove 56, so that the use 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, away from the first spring 25, of the second limiting block 24. The tail end of the second limiting rod 26 is an arc-shaped end, a circular ring 27 is fixedly connected to the pipe body of the limiting pipe 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 are fixedly connected to two side walls of the positioning plate 58, and a pair of second L-shaped blocks 30 are arranged between each pair of fixing blocks 29. The two pairs of second L-shaped blocks 30 are symmetrically disposed about the central axis of the locating plate 58 to facilitate 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 locating 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. The second spring 35 is wound on the shaft of the cross bar 32, and can clamp circuit boards of different sizes through the limiting mechanism, so that hands of a person are liberated, and the detection of the circuit boards by a detection person is facilitated.
Rectangular openings with the same width as the supporting plate 13 are respectively arranged on 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 a blowing bin 36, wherein 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, and a plurality of air guide pipes 38 are fixedly connected to one side of the blowing bin 36, which is close to the dust collection bin 11. The other end of the air guide pipe 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.
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, 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 bin 11 far away from the blast bin 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 collection pipes 45, and the other ends of the second dust collection pipes 45 penetrate through the side wall of the dust collection bin 11.
The other end fixed connection of first dust absorption pipe 42 is on the pipe shaft of standpipe 44, and the other end fixed connection of first dust pipe 43 is on the lateral wall of dust collection bin 41 to improve first dust removal mechanism and can clear dust to stop gear, thereby avoid the dust adhesion on the circuit board when centre gripping circuit board. Meanwhile, a second dust removing mechanism is arranged above the processing table 5.
The second dust cleaning mechanism comprises a third motor 46, wherein 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, 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, and a positioning rod 50 penetrates through the positioning hole. The two ends of the positioning rod 50 are fixedly connected to the inner walls of the two sides of the box body 1 respectively.
Threaded hole threaded connection has threaded rod 51, the one end fixed connection of threaded rod 51 is on the output shaft of third motor 46, and the other end of threaded rod 51 passes through bearing swing joint on the lateral wall of box 1, fixedly connected with second dust absorption pump 52 on the inner wall that the box 1 kept away from 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 the hose structure, and 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 dust guide pipe 54 is at the top of dust collection bin 41, improve the clean dirt mechanism of second and can clear dirt to processing platform 5, thereby avoid dust pollution circuit board.
Working principle: when the invention is used, all electric equipment is externally connected with a power supply, and then the box door 2 is opened. Then, 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 distance between each pair of second L-shaped blocks 30 is suitable for clamping the circuit board, the movable block 33 can be pulled away from the second L-shaped blocks 30, the clamping block 34 is away from the positioning plate 58, and the second springs 35 are stretched.
Then, the circuit board is placed between the clamping block 34 and the positioning plate 58, and then the movable block 33 is released, and the clamping block 34 clamps the circuit board under the elastic reset action of the second spring 35; when the positioning plate 58 needs to be rotated, the positioning plate 58 can be held by hand, then the positioning plate 58 is rotated, then the second limiting groove 56 is driven to rotate through the positioning plate 58, and then the second limiting rod 26 is pushed to shrink through the cambered surface effect between the circular groove 28 and the second limiting rod 26, so that the positioning plate 58 is rotated, and the circuit board can be measured better.
At this time, loop resistance detection can be performed on the circuit board by using the loop resistance tester 19, when the detection is finished, the first motor 7 can be started, the first motor 7 tightens the wire rope 8, and then the processing table 5 is pulled to move upwards by the wire rope 8 until the processing table 5 rises to the lower part of the dust collection groove 49, and the second dust collection pump 52 is started. The second dust suction pump 52 sucks dust above the processing table 5 by the cooperation between the fourth dust suction pipe 53 and the third dust suction pipe 48 and the dust suction groove 49, and introduces the dust into the dust collection bin 41 containing 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 under the action of threads between the threaded hole and the threaded rod 51, so that the cleaning effect of the processing table 5 can be improved.
At the same time, 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 are started, and then the air is blown by the fan 37 and blown into the dust suction bin 11 through the air guide pipe 38, so that dust on the positioning plate 58 can be blown off. Meanwhile, the dust in the dust collection bin 11 can be sucked out through the cooperation between the first dust collection pump 40 and the first dust collection pipe 42, the vertical pipe 44 and the second dust collection pipe 45, and is guided into the dust collection bin 41 filled with water through the first dust guide pipe 43. When dust cleaning is required on other surfaces of the positioning plate 58, the second motor 17 is started, the second motor 17 drives the second gear 18 to rotate, then the first gear 14, the vertical plate 20 and the positioning plate 58 are driven to rotate through the meshing action between the second gear 18 and the first gear 14, and then the other surfaces of the positioning plate 58 can be blown, so that the cleaning effect of the positioning plate 58 and the clamping blocks 34 is improved, and dust is prevented from adhering to the circuit board when the circuit board is tested next time.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
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 set up two reel (3) in box (1), its characterized in that: the two sides of the reel (3) are fixedly connected with a rotating rod (4), the other end of the rotating rod (4) is movably connected to the inner walls of the two sides of the box body (1) through a bearing, 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 automatic feeding device comprises a box body (1), wherein sliding grooves matched with sliding blocks are formed in the inner walls of the two sides of the box body (1), the sliding blocks are located in the sliding grooves, a first motor (7) is fixedly connected to the inner walls of the bottoms of the two sides of the box body (1), a steel wire rope (8) is wound on an output shaft of the first motor (7), the other side of the steel wire rope (8) bypasses a reel (3) and is fixedly connected to the top of a 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 a transverse block (10) is fixedly connected to the top of the first L-shaped block (9); the dust collection device is characterized in that 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) and a circular groove (15) is further formed in the support plate, 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 backup pad (13) fixedly connected with second motor (17), the output shaft of this second motor (17) runs through backup pad (13) and fixedly connected with second gear (18), second gear (18) meshes with first gear (14), and one side that this second gear (18) kept away from first gear (14) 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 front end face of riser (20) is equipped with stop gear, all seted up the rectangle mouth that equals with backup pad (13) width on dust absorption storehouse (11) and the processing platform (5), just be equipped with first dust removal mechanism on dust absorption storehouse (11), the top of processing platform (5) is equipped with second dust removal mechanism;
the first dust cleaning mechanism comprises a blasting bin (36), the blasting bin (36) is fixedly connected to the side wall of the dust collection bin (11), a fan (37) is fixedly connected to the inside of the blasting bin (36), one side, close to the dust collection bin (11), of the blasting bin (36) is fixedly connected with a plurality of air guide pipes (38), the other end of each air guide pipe (38) penetrates through the side wall of the dust collection bin (11), a fixed plate (39) is fixedly connected to the side wall of the box body (1), a first dust collection pump (40) and a dust collection bin (41) are fixedly connected to the top of the fixed 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 bottom side wall of the dust collection bin (41), a valve is arranged on the water outlet pipe, a first dust collection pipe (42) and a first dust collection pipe (43) are fixedly connected to one side of the first dust collection pump (40), a second dust collection pipe (45) is fixedly connected to the side wall of the dust collection bin (36), a second dust collection pipe (45) is fixedly connected to the other end of the dust collection bin (45), the other end of the first dust guide pipe (43) is fixedly connected to the side wall of the dust collection bin (41);
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), one side of the third motor (46) is provided with a threaded block (47), the bottom of the threaded block (47) is fixedly connected with a third dust collection pipe (48), the bottom of the third dust collection pipe (48) is fixedly connected with a dust collection groove (49), the bottom of the dust collection groove (49) is provided with a dust collection opening, the threaded block (47) is provided with a positioning hole and a threaded hole, 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 in threaded connection with one end of the threaded rod (51) and is fixedly connected to an output shaft of the third motor (46), the other end of the threaded rod (51) is movably connected to the side wall of the box body (1) through a bearing, the inner wall of the box body (1) far away from the third motor (46) is fixedly connected with a second dust collection pump (52), the second dust collection pipe (53) is fixedly connected to the fourth dust collection pipe (53) and the fourth dust collection pipe (53) is fixedly connected to the fourth dust collection pipe (53), the pipe orifice at the other end of the second dust guide pipe (54) is fixedly connected to the top of the dust collection bin (41).
2. A loop impedance testing system according to claim 1, wherein: the limiting mechanism comprises a limiting pipe (21), the limiting pipe (21) is fixedly connected to 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 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), a positioning plate (58) is fixedly connected to the other end of the first limiting rod (57), a plurality of second limiting grooves (56) are fixedly connected to the rear side wall of the positioning plate (58), a second limiting block (24) is arranged in the second limiting groove (56), a first spring (25) is fixedly connected between the second limiting block (24) and the inner wall of the second limiting groove (56), a second limiting rod (26) is fixedly connected to one side, far away from the first spring (25), a circular ring (27) is arranged at one side, close to the second limiting rod (26), of the circular ring (27) is connected to the circular ring (27), the utility model discloses a fixed plate, including locating plate (58), fixed plate (30), locating plate (58) are all fixedly connected with a pair of fixed block (29), every pair be equipped with a pair of second L shape piece (30) between fixed block (29), two round holes have been seted up on second L shape piece (30), pass in the round hole have dead lever (31), the both ends fixed connection of dead lever (31) is at the lateral wall of fixed block (29), the through-hole has been seted up on second L shape piece (30), pass in the through-hole have horizontal pole (32), the one end fixedly connected with movable block (33) of keeping away from locating plate (58) of horizontal pole (32), just the other end fixedly connected with grip block (34) of horizontal pole (32), fixedly connected with second spring (35) between the lateral wall of grip block (34) and second L shape piece (30), second spring (35) twine on the pole body of horizontal pole (32).
3. A loop impedance testing system according to 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. A loop impedance testing system according to 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. A loop impedance testing system according to 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 pad 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 true CN113552417B (en) | 2023-12-29 |
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| CN113552417A (en) | 2021-10-26 |
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