CN111795930B - Universal test fixture for mobile communication circuit board - Google Patents
Universal test fixture for mobile communication circuit board Download PDFInfo
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- CN111795930B CN111795930B CN202010792395.9A CN202010792395A CN111795930B CN 111795930 B CN111795930 B CN 111795930B CN 202010792395 A CN202010792395 A CN 202010792395A CN 111795930 B CN111795930 B CN 111795930B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/01—Arrangements or apparatus for facilitating the optical investigation
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
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Abstract
The invention discloses a universal test fixture for a mobile communication circuit board, relates to the technical field of circuit board test fixtures, and aims to solve the problems that when circuit boards of different sizes are clamped by hard spring clamps, the circuit boards are easily bent and broken or printed circuits on the circuit boards are scratched, the use is affected, and the universal test efficiency is poor. The inside of test fixture base is provided with the motor sliding tray, the inside of motor sliding tray is provided with first motor storehouse, the top in first motor storehouse is provided with the test fixture support frame, the top of test fixture support frame is provided with U type cassette, two be provided with double piston head electric telescopic handle between the U type cassette, the inside in first motor storehouse is provided with step motor, the top of T type slider sliding tray is provided with the test support column, one side of test support column is provided with the testing tool mounting bracket, be provided with electric telescopic handle between testing tool mounting bracket and the test support column.
Description
Technical Field
The invention relates to the technical field of clamps for circuit board testing, in particular to a universal test clamp for a mobile communication circuit board.
Background
Mobile communication is communication between mobile bodies or between a mobile body and a fixed body, and both parties of communication need to have one or both parties in motion, including land, sea, and air mobile communication. The moving body can be a person, and can also be an object in a moving state such as an automobile, a train, a ship, a radio and the like. Mobile communication employs frequency bands extending over low, medium, high, very high and very high frequencies. The carriers responsible for data transfer require circuit boards, which are providers of electrical connections for electronic components. A universal test device is a test device for measuring the range of a set of parameters common to a plurality of different systems or devices. When a circuit board is subjected to general test, the circuit board needs to be clamped and fixed by a clamp in order to ensure the temperature of the circuit board.
At present, when carrying out the centre gripping to the circuit board when carrying out general test to the circuit board, mostly use the stereoplasm spring clamp to carry out the centre gripping to it, because the circuit board adopts flexible material to make, and the circuit board size of different demands is uneven, and the stereoplasm spring clamp that uses the same clamping force carries out the centre gripping to it, appears the centre gripping easily and excessively causes the printed circuit on circuit board bending fracture or the fish tail circuit board, uses once, and general efficiency of software testing is not good, can not satisfy the user demand. Therefore, a universal test fixture for mobile communication circuit boards is urgently needed in the market to solve the problems.
Disclosure of Invention
The invention aims to provide a universal test fixture for a mobile communication circuit board, which aims to solve the problems that when the rigid spring clamp is adopted to clamp circuit boards with different sizes, the circuit boards are easy to bend and break or scratch printed circuits on the circuit boards, the use is influenced, the universal test efficiency is poor, and the use requirements can not be met.
In order to achieve the purpose, the invention provides the following technical scheme: a universal test fixture for a mobile communication circuit board comprises a test fixture base, wherein a motor sliding groove is arranged inside the test fixture base, a first motor bin is arranged inside the motor sliding groove, one end of the first motor bin extends to the upper side of the motor sliding groove, a test fixture supporting frame is arranged above the first motor bin, U-shaped clamping seats are arranged above the test fixture supporting frame, two U-shaped clamping seats are arranged, T-shaped open slots are formed in the two U-shaped clamping seats, the test fixture supporting frame extends to the inner side of the T-shaped open slots, a double-piston-head electric telescopic rod is arranged between the two U-shaped clamping seats and is connected with the U-shaped clamping seats in an attaching mode, two limiting grooves are arranged inside the test fixture supporting frame, and the two limiting grooves are symmetrically arranged relative to the test fixture supporting frame, a stepping motor is arranged in the first motor bin and is connected with the first motor bin through screws, a rotating connecting rod is arranged above the output end of the stepping motor and is connected with the output end of the stepping motor through a coupler, one end of the rotating connecting rod penetrates through the first motor bin and is connected with a test fixture supporting frame through screws, a bearing is arranged at the contact part of the rotating connecting rod and the first motor bin and is rotationally connected with the rotating connecting rod, a T-shaped sliding block groove is arranged in the test fixture base, a test supporting column is arranged above the T-shaped sliding block groove, the outer diameter of the test supporting column is larger than the inner diameter of the T-shaped sliding block groove, a T-shaped sliding block is arranged in the T-shaped sliding block groove and is connected with the test supporting column through gas welding, and a through hole is formed in the T-shaped sliding block, and the both ends of perforating hole all extend to the outside of T type slider, the inside of perforating hole is provided with the screw thread, and the laminating of the inner wall of screw thread and perforating hole is connected, one side of test support column is provided with the testing tool mounting bracket, and the internal diameter of testing tool mounting bracket is greater than the external diameter of U type cassette, be provided with electric telescopic handle second between testing tool mounting bracket and the test support column, and the both ends of electric telescopic handle second are connected with the laminating of testing tool mounting bracket and test support column respectively, one side of test fixture base is provided with the second motor storehouse, and the second motor storehouse passes through the screw connection with the test fixture base, the inside in second motor storehouse is provided with servo motor, and servo motor passes through the screw connection with the second motor storehouse.
Preferably, silica gel pads are arranged between the stepping motor and the first motor cabin as well as between the servo motor and the second motor cabin, and are respectively attached to the stepping motor, the first motor cabin, the servo motor and the second motor cabin.
Preferably, the below of testing tool mounting bracket is provided with light emitter, and light emitter passes through bolted connection with the testing tool mounting bracket, the top of testing tool mounting bracket is provided with the light receiver plate, and the light receiver plate passes through bolted connection with the testing tool mounting bracket, the light receiver plate is in on same vertical water line with light emitter's center, the below of U type cassette is provided with the objective table, the both sides of objective table all are provided with the stopper, and the stopper passes through bolted connection with the objective table, the external diameter of stopper slightly is less than the internal diameter of spacing groove.
Preferably, an electric telescopic rod C is arranged between the objective table and the test fixture support frame, two ends of the electric telescopic rod C are respectively connected with the objective table and the test fixture support frame through screws, an insulating rubber pad is arranged above the objective table, and the insulating rubber pad is connected with the objective table in a laminating manner.
Preferably, idler wheels are arranged between the first motor bin and the test fixture base, seven idler wheels are arranged, the seven idler wheels are rotatably connected with the test fixture base, and the idler wheels are attached to the first motor bin.
Preferably, one side in first motor storehouse is provided with electric telescopic handle first, and electric telescopic handle first one end extend to the inside of test fixture base and be connected with the laminating of test fixture base, the both sides in first motor storehouse all are provided with spacing slide rail, and spacing slide rail is provided with four, and four spacing slide rails all pass through bolted connection, four with first motor storehouse the one end of spacing slide rail all extends to the inside of test fixture base, and spacing slide rail and test fixture base sliding connection.
Preferably, one side of servo motor output is provided with the screw lead screw, and the one end of screw lead screw runs through T type slider and extends to the inside of test fixture base, the screw lead screw is connected with the meshing of screw thread, and the screw lead screw rotates with the test fixture base to be connected, the screw lead screw all is provided with the bearing with the contact department of second motor storehouse and test fixture base, and the bearing rotates with the screw lead screw to be connected.
Preferably, the inside of two U type cassette all is provided with the cotton flannel pad, and the cotton flannel pad is connected with the laminating of U type cassette, two be provided with the mobile communication circuit board between the U type cassette, and the both ends of mobile communication circuit board all are connected with the cotton flannel pad laminating, the inside of cotton flannel pad is provided with pressure sensor.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the device, through the arrangement of the double-piston-head electric telescopic rod, the flannel pad and the pressure sensor, as the U-shaped clamping seats are connected with the test fixture supporting frame in a sliding manner, the two U-shaped clamping seats are driven to horizontally slide along the test fixture supporting frame under the action of the double-piston-head electric telescopic rod, and then the mobile communication circuit board is clamped and fixed; the flannelette pad can be compressed and adjusted when being subjected to extrusion force, so that the friction force between the flannelette pad and the mobile communication circuit board is increased, and the clamping stability of the mobile communication circuit board is improved; the pressure sensor can detect the extrusion force between the flannel pad and the mobile communication circuit board, and the mobile communication circuit board is prevented from being bent and broken due to excessive clamping. The problem of can carry out the centre gripping to not unidimensional mobile communication circuit board fixed, and avoid the centre gripping fixed, be convenient for the test is solved.
2. According to the device, the light source emitter and the light receiving plate are arranged, the light source emitter can emit light, when the light irradiates on the mobile communication circuit board, the light can penetrate through the hole in the mobile communication circuit board and then be received by the light receiving plate, and therefore the hole in the mobile communication circuit board can be displayed. The problem of need not insert the examination one by one with the help of the test needle and test, improve efficiency of software testing is solved.
3. The device drives the test fixture supporting frame to rotate under the action of the stepping motor through the arrangement of the stepping motor, the electric telescopic rod A and the servo motor, and then drives the mobile communication circuit board to rotate; the first motor bin is driven to slide under the action of the electric telescopic rod A, and then the mobile communication circuit board is driven to move; because screw lead screw and T type slider threaded connection can drive T type slider horizontal migration under servo motor's effect, drive light source emitter and light receiver plate removal then. The problem of can carry out accurate location test to the mobile communication circuit board of equidimension not is solved.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a top view of the present invention;
FIG. 3 is a diagram of the connection between the first motor compartment and the base of the test fixture according to the present invention;
FIG. 4 is a diagram showing the connection relationship between the U-shaped card holder and the objective table and the support frame of the test fixture according to the present invention;
FIG. 5 is a diagram showing the connection relationship between the servo motor and the base of the test fixture and the T-shaped slider according to the present invention;
fig. 6 is a connection relationship diagram of the mobile communication circuit board and the U-shaped card socket of the present invention.
In the figure: 1. testing the fixture base; 2. a first motor compartment; 3. a stepping motor; 4. an electric telescopic rod A; 5. a test fixture support frame; 6. a U-shaped card seat; 7. an object stage; 8. testing the support columns; 9. a test tool mounting rack; 10. an electric telescopic rod B; 11. a light source emitter; 12. a light receiving plate; 13. a T-shaped slider; 14. a threaded lead screw; 15. a motor sliding groove; 16. c, electrically telescoping a rod C; 17. a T-shaped sliding block sliding groove; 18. a mobile communication circuit board; 19. the double-piston head electric telescopic rod; 20. rotating the connecting rod; 21. a bearing; 22. a silica gel pad; 23. a limiting slide rail; 24. a roller; 25. a limiting groove; 26. a flannel pad; 27. a pressure sensor; 28. a T-shaped open slot; 29. an insulating rubber pad; 30. a through hole; 31. a thread; 32. a limiting block; 33. a second motor compartment; 34. a servo motor.
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.
Referring to fig. 1-6, an embodiment of the present invention is shown: a universal test fixture for a mobile communication circuit board comprises a test fixture base 1, a motor sliding groove 15 is arranged inside the test fixture base 1, a first motor chamber 2 is arranged inside the motor sliding groove 15, one end of the first motor chamber 2 extends to the upper side of the motor sliding groove 15, a test fixture support frame 5 is arranged above the first motor chamber 2, U-shaped clamping seats 6 are arranged above the test fixture support frame 5, two U-shaped clamping seats 6 are arranged, the U-shaped clamping seats 6 can clamp the mobile communication circuit board 18, T-shaped open slots 28 are arranged inside the two U-shaped clamping seats 6, the test fixture support frame 5 extends to the inner side of the T-shaped open slot 28, a double-piston-head electric telescopic rod 19 is arranged between the two U-shaped clamping seats 6, the double-piston-head electric telescopic rod 19 is connected with the U-shaped clamping seats 6 in a laminating manner, and the double-piston-head electric telescopic rod 19 can drive the U-shaped clamping seats 6 to slide, the inside of the test fixture support frame 5 is provided with two limit grooves 25, the two limit grooves 25 are symmetrically arranged about the test fixture support frame 5, the inside of the first motor chamber 2 is provided with a stepping motor 3, the stepping motor 3 is connected with the first motor chamber 2 through screws, the stepping motor 3 can drive the mobile communication circuit board 18 to rotate and adjust, a rotating connecting rod 20 is arranged above the output end of the stepping motor 3, the rotating connecting rod 20 is connected with the output end of the stepping motor 3 through a coupler, one end of the rotating connecting rod 20 penetrates through the first motor chamber 2 and is connected with the test fixture support frame 5 through screws, a bearing 21 is arranged at the contact part of the rotating connecting rod 20 and the first motor chamber 2, the bearing 21 is rotatably connected with the rotating connecting rod 20, the inside of the test fixture base 1 is provided with a T-shaped slider sliding groove 17, and a test support column 8 is arranged above the T-shaped slider sliding groove 17, the outer diameter of the test support column 8 is larger than the inner diameter of the T-shaped slide block sliding groove 17, a T-shaped slide block 13 is arranged inside the T-shaped slide block sliding groove 17, the T-shaped slide block 13 is connected with the test support column 8 in a gas welding mode, a through hole 30 is formed inside the T-shaped slide block 13, two ends of the through hole 30 extend to the outer portion of the T-shaped slide block 13, a threaded screw thread 31 is arranged inside the through hole 30, the threaded screw thread 31 is connected with the inner wall of the through hole 30 in an attaching mode, a test tool mounting frame 9 is arranged on one side of the test support column 8, the inner diameter of the test tool mounting frame 9 is larger than the outer diameter of the U-shaped clamping seat 6, an electric telescopic rod B10 is arranged between the test tool mounting frame 9 and the test support column 8, two ends of the electric telescopic rod B10 are respectively connected with the test tool mounting frame 9 and the test support column 8 in an attaching mode, and the electric telescopic rod B10 can drive the test tool mounting frame 9 to move horizontally, one side of the test fixture base 1 is provided with a second motor cabin 33, the second motor cabin 33 is connected with the test fixture base 1 through screws, a servo motor 34 is arranged inside the second motor cabin 33, and the servo motor 34 is connected with the second motor cabin 33 through screws. The servo motor 34 can drive the test support column 8 to move horizontally.
Further, silica gel pads 22 are arranged between the stepping motor 3 and the first motor cabin 2, between the servo motor 34 and the second motor cabin 33, and the silica gel pads 22 are respectively attached to the stepping motor 3, the first motor cabin 2, the servo motor 34 and the second motor cabin 33. The vibration generated by the work of the stepping motor 3 and the servo motor 34 can be buffered through the silica gel pad 22, and the noise is reduced.
Further, the below of testing tool mounting bracket 9 is provided with light source emitter 11, and light source emitter 11 passes through bolted connection with testing tool mounting bracket 9, the top of testing tool mounting bracket 9 is provided with light receiving plate 12, and light receiving plate 12 passes through bolted connection with testing tool mounting bracket 9, light receiving plate 12 is on same vertical water line with light source emitter 11's center, the below of U type cassette 6 is provided with objective table 7, the both sides of objective table 7 all are provided with stopper 32, and stopper 32 passes through bolted connection with objective table 7, the external diameter of stopper 32 slightly is less than the internal diameter of spacing groove 25. The holes of the mobile communication circuit board 18 can be tested through the light source transmitter 11 and the light receiving board 12.
Further, an electric telescopic rod C16 is arranged between the object stage 7 and the test fixture support frame 5, two ends of the electric telescopic rod C16 are respectively connected with the object stage 7 and the test fixture support frame 5 through screws, an insulating rubber pad 29 is arranged above the object stage 7, and the insulating rubber pad 29 is attached to and connected with the object stage 7. The object stage 7 can be driven to lift through the electric telescopic rod C16; the insulating rubber pad 29 improves the stability of the mobile communication circuit board 18 placed on the stage 7.
Further, be provided with gyro wheel 24 between first motor storehouse 2 and the test fixture base 1, and gyro wheel 24 is provided with seven, and seven gyro wheels 24 all rotate with test fixture base 1 and be connected, and gyro wheel 24 laminates with first motor storehouse 2 mutually. The friction coefficient between the first motor bin 2 and the test fixture base 1 can be reduced through the rollers 24, and the sliding of the first motor bin 2 is facilitated.
Further, one side of first motor storehouse 2 is provided with electric telescopic handle first 4, and electric telescopic handle first 4's one end extends to test fixture base 1's inside and is connected with the laminating of test fixture base 1, the both sides of first motor storehouse 2 all are provided with spacing slide rail 23, spacing slide rail 23 is provided with four, and four spacing slide rails 23 all pass through the screw connection with first motor storehouse 2, the one end of four spacing slide rails 23 all extends to test fixture base 1's inside, and spacing slide rail 23 and test fixture base 1 sliding connection. The first motor bin 2 can be driven to horizontally slide by the electric telescopic rod A4; the limiting slide rail 23 can limit the position of the first motor chamber 2 in the horizontal sliding process.
Further, a threaded screw rod 14 is arranged on one side of the output end of the servo motor 34, one end of the threaded screw rod 14 penetrates through the T-shaped sliding block 13 and extends to the inside of the test fixture base 1, the threaded screw rod 14 is meshed with the threaded screw thread 31 and is rotatably connected with the test fixture base 1, bearings 21 are arranged at the contact positions of the threaded screw rod 14, the second motor bin 33 and the test fixture base 1, and the bearings 21 are rotatably connected with the threaded screw rod 14. The threaded screw rod 14 can drive the test support column 8 to move horizontally.
Further, the inside of two U type cassette 6 all is provided with flannelette pad 26, and flannelette pad 26 is connected with the laminating of U type cassette 6, is provided with mobile communication circuit board 18 between two U type cassette 6, and mobile communication circuit board 18's both ends all with flannelette pad 26 laminating connection, flannelette pad 26's inside is provided with pressure sensor 27. The friction force between the mobile communication circuit board 18 and the U-shaped card holder 6 can be increased through the flannelette pad 26; the pressure sensor 27 can detect the pressing force between the mobile communication circuit board 18 and the U-shaped card holder 6.
The working principle is as follows: during the use, 19 extensions of drive double piston head electric telescopic handle, extend suitable position departments with the distance between two U type cassette 6, the extension of drive electric telescopic handle third 16, it rises to drive objective table 7 under electric telescopic handle third 16's effect, because spacing groove 25 and stopper 32's setting, will stop when objective table 7 rises to a certain position department, place mobile communication circuit board 18 on objective table 7, 19 shrink of drive double piston head electric telescopic handle drive two U type cassettes 6 carry out the centre gripping with mobile communication circuit board 18, after the centre gripping, drive electric telescopic handle third 16 shrinks. Drive electric telescopic handle second 10 extension, drive light source emitter 11 and light dash receiver 12 and remove under electric telescopic handle second 10's effect, can adjust the spatial position of light source emitter 11 and mobile communication circuit board 18 through drive servo motor 34 and electric telescopic handle first 4, adjust light source emitter 11 to the top of mobile communication circuit board 18 central point department of putting can, open light source emitter 11 and light dash receiver 12, light source emitter 11 can the transmission light, light can see through the hole on the mobile communication circuit board 18 and be accepted by light dash receiver 12, thereby realize the test of mobile communication circuit board 18 hole. If the mobile communication circuit board 18 needs to be adjusted in rotation, the stepping motor 3 is driven, and the mobile communication circuit board 18 can be indirectly driven to rotate under the action of the stepping motor 3. The model number of the stepping motor 3 is 110BYG350CH-0501, the model number of the servo motor 34 is SM 110-.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (7)
1. The utility model provides a general test fixture of mobile communication circuit board, includes test fixture base (1), its characterized in that: a motor sliding groove (15) is arranged inside the test fixture base (1), a first motor bin (2) is arranged inside the motor sliding groove (15), one end of the first motor bin (2) extends to the upper portion of the motor sliding groove (15), a test fixture support frame (5) is arranged above the first motor bin (2), a U-shaped clamping seat (6) is arranged above the test fixture support frame (5), two U-shaped clamping seats (6) are arranged, T-shaped open grooves (28) are formed in the two U-shaped clamping seats (6), the test fixture support frame (5) extends to the inner portion of the T-shaped open grooves (28), a double-piston-head electric telescopic rod (19) is arranged between the two U-shaped clamping seats (6), the double-piston-head electric telescopic rod (19) is connected with the U-shaped clamping seats (6) in a laminating manner, a limit groove (25) is arranged inside the test fixture support frame (5), the two limiting grooves (25) are symmetrically arranged about the test fixture support frame (5), the stepping motor (3) is arranged in the first motor bin (2), the stepping motor (3) is connected with the first motor bin (2) through screws, a rotating connecting rod (20) is arranged above the output end of the stepping motor (3), the rotating connecting rod (20) is connected with the output end of the stepping motor (3) through a coupler, one end of the rotating connecting rod (20) penetrates through the first motor bin (2) and is connected with the test fixture support frame (5) through screws, a bearing (21) is arranged at the contact position of the rotating connecting rod (20) and the first motor bin (2), the bearing (21) is rotatably connected with the rotating connecting rod (20), and a T-shaped sliding block sliding groove (17) is arranged in the test fixture base (1), a test support column (8) is arranged above the T-shaped sliding block sliding groove (17), the outer diameter of the test support column (8) is larger than the inner diameter of the T-shaped sliding block sliding groove (17), a T-shaped sliding block (13) is arranged inside the T-shaped sliding block sliding groove (17), the T-shaped sliding block (13) is connected with the test support column (8) in a gas welding mode, a through hole (30) is formed inside the T-shaped sliding block (13), the two ends of the through hole (30) extend to the outside of the T-shaped sliding block (13), a threaded thread (31) is arranged inside the through hole (30), the threaded thread (31) is connected with the inner wall of the through hole (30) in a fitting mode, a test tool mounting frame (9) is arranged on one side of the test support column (8), the inner diameter of the test tool mounting frame (9) is larger than the outer diameter of the U-shaped clamping seat (6), an electric telescopic rod B (10) is arranged between the test tool mounting frame (9) and the test support column (8), and the two ends of the electric telescopic rod B (10) are respectively connected with the test tool mounting frame (9) and the test support column (8) in a laminating way, one side of the test fixture base (1) is provided with a second motor cabin (33), the second motor cabin (33) is connected with the test fixture base (1) through screws, a servo motor (34) is arranged inside the second motor cabin (33), the servo motor (34) is connected with the second motor cabin (33) through screws, a light source transmitter (11) is arranged below the test tool mounting frame (9), the light source transmitter (11) is connected with the test tool mounting frame (9) through screws, a light receiving plate (12) is arranged above the test tool mounting frame (9), the light receiving plate (12) is connected with the test tool mounting frame (9) through screws, the centers of the light receiving plate (12) and the light source transmitter (11) are positioned on the same vertical horizontal line, the test fixture is characterized in that an object stage (7) is arranged below the test fixture supporting frame (5), limiting blocks (32) are arranged on two sides of the object stage (7), the limiting blocks (32) are connected with the object stage (7) through screws, and the outer diameter of each limiting block (32) is slightly smaller than the inner diameter of each limiting groove (25).
2. The universal test fixture for mobile communication circuit boards of claim 1, wherein: all be provided with silica gel pad (22) between step motor (3) and first motor storehouse (2), servo motor (34) and second motor storehouse (33), and silica gel pad (22) laminate mutually with step motor (3), first motor storehouse (2), servo motor (34) and second motor storehouse (33) respectively.
3. The universal test fixture for mobile communication circuit boards of claim 1, wherein: be provided with electric telescopic handle third (16) between objective table (7) and test fixture support frame (5), and the both ends of electric telescopic handle third (16) pass through bolted connection with objective table (7) and test fixture support frame (5) respectively, the top of objective table (7) is provided with insulating rubber pad (29), and insulating rubber pad (29) is connected with objective table (7) laminating.
4. The universal test fixture for mobile communication circuit boards of claim 1, wherein: be provided with gyro wheel (24) between first motor storehouse (2) and test fixture base (1), and gyro wheel (24) are provided with seven, and seven gyro wheels (24) all rotate with test fixture base (1) and be connected, gyro wheel (24) laminate mutually with first motor storehouse (2).
5. The universal test fixture for mobile communication circuit boards of claim 4, wherein: one side of first motor storehouse (2) is provided with electric telescopic handle first (4), and the one end of electric telescopic handle first (4) extends to the inside of test fixture base (1) and is connected with the laminating of test fixture base (1), the both sides of first motor storehouse (2) all are provided with spacing slide rail (23), and spacing slide rail (23) are provided with four, and four spacing slide rail (23) all pass through screw connection, four with first motor storehouse (2) the one end of spacing slide rail (23) all extends to the inside of test fixture base (1), and spacing slide rail (23) and test fixture base (1) sliding connection.
6. The universal test fixture for mobile communication circuit boards of claim 1, wherein: one side of servo motor (34) output is provided with screw lead screw (14), and the inside that T type slider (13) and extend to test fixture base (1) is run through to the one end of screw lead screw (14), screw lead screw (14) are connected with screw thread (31) meshing, and screw lead screw (14) rotate with test fixture base (1) and be connected, screw lead screw (14) all are provided with bearing (21) with the contact department of second motor storehouse (33) and test fixture base (1), and bearing (21) rotate with screw lead screw (14) and be connected.
7. The universal test fixture for mobile communication circuit boards of claim 1, wherein: two the inside of U type cassette (6) all is provided with cotton flannel pad (26), and cotton flannel pad (26) and U type cassette (6) laminating are connected, two be provided with mobile communication circuit board (18) between U type cassette (6), and the both ends of mobile communication circuit board (18) all with cotton flannel pad (26) laminating be connected, the inside of cotton flannel pad (26) is provided with pressure sensor (27).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010792395.9A CN111795930B (en) | 2020-08-09 | 2020-08-09 | Universal test fixture for mobile communication circuit board |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792395.9A CN111795930B (en) | 2020-08-09 | 2020-08-09 | Universal test fixture for mobile communication circuit board |
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| CN111795930A CN111795930A (en) | 2020-10-20 |
| CN111795930B true CN111795930B (en) | 2021-09-21 |
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| CN117554779B (en) * | 2023-11-14 | 2024-06-07 | 苏州微飞半导体有限公司 | ACS (auto-seal) testing equipment for vertical conductive adhesive of metal wire and application method of ACS testing equipment |
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