CN211148719U - Printed circuit board test fixture - Google Patents
Printed circuit board test fixture Download PDFInfo
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- CN211148719U CN211148719U CN201921576304.7U CN201921576304U CN211148719U CN 211148719 U CN211148719 U CN 211148719U CN 201921576304 U CN201921576304 U CN 201921576304U CN 211148719 U CN211148719 U CN 211148719U
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Abstract
The utility model discloses a printed circuit board test fixture, which comprises a fixture table, a lifting structure and a clamping structure; a fixture table: the fixture table is fixedly connected to the ground, and the upper surface of the fixture table is provided with a through rectangular groove; elevation structure: elevation structure includes elevator motor, the transmission shaft, a supporting seat, elevating screw, the limiting plate, "S" type slider, guide arm and spring, what this circuit board test fixture' S transmission structure mainly adopted is screw drive, turn into axial motion with the rotary motion of motor, it is high to have positioning accuracy, high transmission efficiency, the transmission process is comparatively stable and has driven reversibility, the flexibility of anchor clamps itself has been increased, it is higher to the product of different required processing can suitably adjust the commonality, this circuit board test fixture is equipped with flip structure, the manual operation procedure has been reduced, the artifical fault rate has been reduced to a certain extent.
Description
Technical Field
The utility model relates to a circuit board test fixture technical field specifically is a printed circuit board test fixture.
Background
The test fixture belongs to the category below the fixture, and is specially used for testing and experimenting functions, power calibration, service life, performance and the like of a product.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is to overcome current defect, provide a printed circuit board test fixture, increased the flexibility of anchor clamps itself, can suitably adjust to the product of different required processing, the commonality is stronger, can effectively solve the problem in the background art.
In order to achieve the above object, the utility model provides a following technical scheme: a printed circuit board test fixture comprises a fixture table, a lifting structure and a clamping structure;
a fixture table: the upper surface of the clamp table is provided with a through rectangular groove;
elevation structure: the lifting structure comprises a lifting motor, a transmission shaft, a supporting seat, a lifting screw, a limiting plate, an S-shaped sliding block, a guide rod and a spring, wherein the lifting motor is fixedly connected to the upper surface of the fixture table, a first driving gear is fixedly sleeved at the output shaft end of the lifting motor, a first driven gear is meshed with the outer edge of the first driving gear, the transmission shaft penetrates through the center of the first driven gear, the supporting seat is movably sleeved at the center of the transmission shaft, the bottom end of the supporting seat is fixedly connected to the upper surface of the fixture table, supporting plates penetrate through the two ends of the transmission shaft, a main transmission gear is fixedly sleeved at the two ends of the transmission shaft and close to the two supporting plates, an auxiliary transmission gear is meshed with the outer edge of the main transmission gear, the lifting screw penetrates through the center of the auxiliary transmission gear, the limiting plate is, a guide rod penetrates through one end, far away from the lifting screw, of the S-shaped sliding block, a spring is movably sleeved at the bottom end of the guide rod, the bottom end of the guide rod is fixed on the upper surface of the clamp table, a bearing plate penetrates through one end, close to the auxiliary transmission gear, of the lifting screw, and one end of the bearing plate is fixedly connected to the upper surface of the clamp table;
the clamping structure is as follows: the clamping structure comprises an adjusting motor, a fixed plate, a limiting frame, a feed screw, an adjusting lead screw, a limiting block and a clamp block, wherein the limiting frame is fixedly connected to the side surface of the S-shaped sliding block, the adjusting lead screw penetrates through the two side surfaces of the limiting frame, the feed screw is symmetrically and fixedly connected to the two side surfaces of the limiting frame, the clamp block is in threaded connection with the two symmetrical sides of the adjusting lead screw, the feed screw penetrates through the clamp block, the limiting block is rotatably connected to the center of the adjusting lead screw, the bottom surface of the limiting block is fixedly connected to the side surface of the limiting frame, a second driven gear is fixedly sleeved at one end, located outside the limiting frame, of the adjusting lead screw, the fixed plate is fixedly connected to one side of the S-shaped sliding block, the adjusting motor is fixedly connected to the upper surface of the fixed plate, a second driving;
wherein: the elevator car elevator further comprises a control switch group, wherein the output end of the control switch group is electrically connected with the input ends of the lifting motor and the adjusting motor.
The transmission structure of the circuit board test fixture mainly adopts screw transmission, the rotary motion of a motor is converted into axial motion, and the positioning precision of the screw transmission is high, so that the positioning precision of the circuit board test fixture is effectively improved, the transmission efficiency is high, and the transmission process is stable and has transmission reversibility.
Further, the turnover mechanism comprises a turnover structure, the turnover structure comprises a speed reducing motor, a support plate, a rotary plate, a cylindrical nail, a connecting rod, a turnover block, a positioning plate, a fixing rod and a turnover plate, the speed reducing motor is fixedly connected to the lower surface of the fixture table, the output shaft of the speed reducing motor penetrates through the support plate, the rotary plate is fixedly connected to the output shaft of the speed reducing motor, the cylindrical nail is fixedly connected to two opposite side surfaces of the rotary plate and one end of the rotary plate far away from the output end of the speed reducing motor, the connecting rod is rotatably connected to one end of the cylindrical nail far away from the rotary plate, the turnover block is rotatably connected to the other end of the connecting rod through a cylindrical pin, the positioning plate is rotatably connected to the side surface of the turnover block, one end of the positioning plate is fixedly connected to the lower surface of the fixture table, the fixing rod is, the output end of the control switch group is electrically connected with the input end of the speed reducing motor, the overturning structure can meet various testing angles according to needs, the testing flexibility is improved, manual operation procedures are reduced, and the manual operation error rate is reduced.
Furthermore, two sections of threads are arranged on the side faces of two ends of the adjusting screw rod and are symmetrical relative to the limiting block, the spiral directions of the threads arranged at the two ends are opposite, and the opposite spiral directions can enable the two sliding blocks on the same screw rod to generate opposite movement directions, so that the clamping function is realized.
Further, still include spring depression bar and splint, spring depression bar fixed connection is in the bottom surface of anchor clamps piece, and spring depression bar's other end fixedly connected with splint, spring depression bar can effectively protect the circuit board of being surveyed and cause the damage because of external force is too big.
Furthermore, the positioning device further comprises a positioning frame, the positioning frame is fixedly connected to the upper surface of the turning plate, the positioning pins are fixedly connected to the upper surface of the positioning frame and are uniformly distributed, the positioning frame plays a role in auxiliary positioning, and the circuit board to be detected can be prevented from shifting before clamping.
Compared with the prior art, the beneficial effects of the utility model are that: the printed circuit board test fixture has the following advantages:
1. the transmission structure of the circuit board test fixture mainly adopts lead screw transmission, converts the rotary motion of a motor into axial motion, and has the advantages of high positioning precision, high transmission efficiency, stable transmission process and transmission reversibility.
2. The circuit board test fixture can flexibly adjust the size according to the part to be tested, has strong adaptability, can achieve multiple purposes, and reduces the research and development cost of the fixture.
3. The circuit board test fixture is provided with the turnover structure, and the test surface of the circuit board can be changed by using the turnover structure when the other surface of the circuit board needs to be tested, so that manual operation procedures are reduced, and the manual error rate is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is an enlarged schematic view of the main body of the present invention;
fig. 3 is a schematic view of the turnover structure of the present invention;
fig. 4 is a schematic view of the local structure of the clamp block of the present invention.
In the figure: the automatic clamp comprises a clamp table 1, a control switch group 2, a 3 turning structure, a 31 speed reducing motor, a 32 support plate, a 33 rotating plate, a 34 cylindrical nail, a 35 connecting rod, a 36 turning block, a 37 positioning plate, a 38 fixing rod, a 39 turning plate, a 4 lifting structure, a 41 lifting motor, a 42 transmission shaft, a 43 supporting seat, a 44 lifting lead screw, a 45 limiting plate, a 46 'S' -shaped sliding block, a 47 guide rod, a 48 spring, a 5 clamping structure, a 51 adjusting motor, a 52 fixing plate, a 53 limiting frame, a 54 optical lever, a 55 adjusting lead screw, a 56 limiting block, a 57 clamp block, a 571 spring pressing rod, a 572 clamping plate and a 6 positioning frame.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: a printed circuit board test fixture comprises a fixture table 1, a lifting structure 4 and a clamping structure 5;
the fixture table 1: the upper surface of the clamp table 1 is provided with a through rectangular groove;
the lifting structure 4: the lifting structure 4 comprises a lifting motor 41, a transmission shaft 42, a supporting seat 43, a lifting screw 44, a limiting plate 45, an S-shaped sliding block 46, a guide rod 47 and a spring 48, the lifting motor 41 is fixedly connected to the upper surface of the fixture table 1, a first driving gear is fixedly sleeved on an output shaft end of the lifting motor, a first driven gear is meshed on an outer edge of the first driving gear, the transmission shaft 42 is penetrated at the center of the first driven gear, the supporting seat 43 is movably sleeved at the center of the transmission shaft 42, the bottom end of the supporting seat 43 is fixedly connected to the upper surface of the fixture table 1, supporting plates are penetrated at two ends of the transmission shaft 42, a main transmission gear is fixedly sleeved at two ends of the transmission shaft 42 and close to the two supporting plates, an auxiliary transmission gear is meshed on an outer edge of the main transmission gear, the lifting screw 44 is penetrated at the center, an S-shaped sliding block 46 is in threaded connection with a threaded section of the lifting screw 44, a guide rod 47 penetrates through one end, far away from the lifting screw, of the S-shaped sliding block 46, a spring 48 is movably sleeved at the bottom end of the guide rod 47, the bottom end of the guide rod 47 is fixed to the upper surface of the clamp table 1, a bearing plate penetrates through one end, close to the auxiliary transmission gear, of the lifting screw 44, and one end of the bearing plate is fixedly connected to the upper surface of the clamp table 1;
the clamping structure 5: the clamping structure 5 comprises an adjusting motor 51, a fixing plate 52, a limiting frame 53, a light bar 54, an adjusting lead screw 55, a limiting block 56 and a clamp block 57, wherein the limiting frame 53 is fixedly connected to the side surface of the S-shaped sliding block 46, the adjusting lead screw 55 penetrates through the two side surfaces of the limiting frame 53, the light bar 54 is symmetrically and fixedly connected to the two side surfaces of the limiting frame 53, the clamp blocks 57 are in threaded connection with the two symmetrical sides of the adjusting lead screw 55, the light bar 54 penetrates through the clamp blocks 57, the limiting block 56 is rotatably connected to the center of the adjusting lead screw 55, the bottom surface of the limiting block 56 is fixedly connected to the side surface of the limiting frame 53, a second driven gear is fixedly sleeved at one end of the adjusting lead screw 55, which is positioned outside the limiting frame 53, the fixing plate 52 is fixedly connected to one side of the S-shaped sliding block 46, the adjusting motor 51 is fixedly, the outer edge of the second driving gear is meshed with a second driven gear;
wherein: the device further comprises a control switch group 2, wherein the output end of the control switch group 2 is electrically connected with the input ends of the lifting motor 41 and the adjusting motor 51.
Further, the turnover mechanism 3 comprises a speed reducing motor 31, a support plate 32, a rotary plate 33, cylindrical nails 34, connecting rods 35, turnover blocks 36, a positioning plate 37, fixing rods 38 and turnover plates 39, wherein the speed reducing motor 31 is fixedly connected to the lower surface of the fixture table 1, the support plate 32 penetrates through an output shaft of the speed reducing motor 31, the rotary plate 33 is fixedly connected to the output shaft end of the speed reducing motor 31, the cylindrical nails 34 are fixedly connected to two opposite side surfaces of the rotary plate 33 and one end of each rotary plate away from the output end of the speed reducing motor 31, the connecting rods 35 are rotatably connected to one ends of the cylindrical nails 34 away from the rotary plate 33, the turnover blocks 36 are rotatably connected to the other ends of the connecting rods 35 through cylindrical pins, the positioning plate 37 is rotatably connected to the side surface of the turnover blocks 36, one end of the positioning plate 37 is fixedly connected to the lower surface of the fixture table 1, and, the other end of the fixing rod 38 is fixedly connected with a turning plate 39, the upper surface of the turning plate 39 is flush with the upper surface of the clamp table 1, and the output end of the control switch group 2 is electrically connected with the input end of the speed reducing motor 31.
Furthermore, two sections of threads are formed on the side surfaces of the two ends of the adjusting screw 55, and are symmetrical with respect to the limiting block 56, and the directions of the threads formed on the two ends are opposite.
Further, the clamping device further comprises a spring pressing rod 571 and a clamping plate 572, wherein the spring pressing rod 571 is fixedly connected to the bottom surface of the clamping block 57, and the other end of the spring pressing rod 571 is fixedly connected with the clamping plate 572.
Further, the device also comprises a positioning frame 6, wherein the positioning frame 6 is fixedly connected to the upper surface of the turning plate 39, and the upper surface of the positioning frame 6 is fixedly connected with positioning pins which are uniformly distributed.
When in use:
firstly, a printed circuit board to be tested is placed in a positioning frame 6, a control switch group is turned on, a lifting motor 41 starts to work, the lifting motor 41 drives a transmission shaft 42 to rotate through gear transmission, a main transmission gear on the transmission shaft 42 drives an auxiliary transmission gear on a lifting screw 44 to rotate, thereby realizing the lifting motion of an S-shaped sliding block 46, then the adjusting motor 51 starts to work, the adjusting motor 51 drives the adjusting screw 55 to rotate through gear transmission, because the screw thread directions of the adjusting screw rod 55 are opposite, the two clamp blocks 57 are driven to do relative movement in the horizontal direction to realize adjustment in the horizontal direction, when the other side needs to be changed for testing, the speed reducing motor 31 is started, the speed reducing motor 31 drives the rotary plate 33 to rotate, the rotary plate 33 drives the two turnover blocks 36 to rotate through the connecting rod 35, and then the turnover plate 39 is driven to move to realize the conversion of the testing side.
It should be noted that in this embodiment, the core chip of the control switch group 2 is siemens P L C, the specific model is siemens S7-200, the elevator motor 41, the adjustment motor 51 and the reduction motor 31 can be freely configured according to the actual application scenario, the reduction motor 31 can be a L M22 type three-phase motor reducer manufactured by taizhou ling zhi transmission technology ltd, the elevator motor 41 and the adjustment motor 51 can be AKM2G series servo motors manufactured by kelmagen ltd, and the control switch group controls the elevator motor 41, the adjustment motor 51 and the reduction motor 31 to work by a method commonly used in the prior art.
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 (5)
1. A kind of printed circuit board test fixture, characterized by: comprises a clamp table (1), a lifting structure (4) and a clamping structure (5);
jig table (1): the upper surface of the clamp table (1) is provided with a through rectangular groove;
lifting structure (4): the lifting structure (4) comprises a lifting motor (41), a transmission shaft (42), a supporting seat (43), a lifting screw (44), a limiting plate (45), "S" type sliding block (46), a guide rod (47) and a spring (48), wherein the lifting motor (41) is fixedly connected to the upper surface of the fixture table (1), a first driving gear is fixedly sleeved on an output shaft end of the lifting motor, a first driven gear is meshed with the outer edge of the first driving gear, the transmission shaft (42) is penetrated at the center of the first driven gear, the supporting seat (43) is movably sleeved at the center of the transmission shaft (42), the bottom end of the supporting seat (43) is fixedly connected to the upper surface of the fixture table (1), supporting plates are respectively penetrated at two ends of the transmission shaft (42), main transmission gears are fixedly sleeved at two ends of the transmission shaft (42) and are close to the two supporting plates, and auxiliary transmission gears are meshed, a lifting screw rod (44) penetrates through the center of the auxiliary transmission gear, a limiting plate (45) is fixedly connected to the top end of the lifting screw rod (44), a threaded section of the lifting screw rod (44) is in threaded connection with an S-shaped sliding block (46), a guide rod (47) penetrates through one end, far away from the lifting screw rod, of the S-shaped sliding block (46), a spring (48) is movably sleeved at the bottom end of the guide rod (47), the bottom end of the guide rod (47) is fixed to the upper surface of the fixture table (1), a bearing plate penetrates through one end, close to the auxiliary transmission gear, of the lifting screw rod (44), and one end of the bearing plate is fixedly connected to the upper surface of the;
clamping structure (5): the clamping structure (5) comprises an adjusting motor (51), a fixing plate (52), a limiting frame (53), a light bar (54), an adjusting lead screw (55), a limiting block (56) and a clamp block (57), wherein the limiting frame (53) is fixedly connected to the side surface of the S-shaped sliding block (46), the adjusting lead screw (55) penetrates through the two side surfaces of the limiting frame (53), the light bar (54) is symmetrically and fixedly connected to the two side surfaces of the limiting frame (53), the clamp block (57) is in threaded connection with the two symmetrical sides of the adjusting lead screw (55), the light bar (54) penetrates through the clamp block (57), the limiting block (56) is rotatably connected to the center of the adjusting lead screw (55), the bottom surface of the limiting block (56) is fixedly connected to the side surface of the limiting frame (53), a second driven gear is fixedly connected to one end, located outside the limiting frame (53), of the adjusting lead screw (55), and a second driven gear is fixedly sleeved on one side of, the adjusting motor (51) is fixedly connected to the upper surface of the fixing plate (52), a second driving gear is fixedly sleeved on an output shaft end of the adjusting motor (51), and a second driven gear is meshed with the outer edge of the second driving gear;
wherein: the automatic control device is characterized by further comprising a control switch group (2), wherein the output end of the control switch group (2) is electrically connected with the input ends of the lifting motor (41) and the adjusting motor (51).
2. A printed circuit board test fixture as recited in claim 1, wherein: the fixture comprises a fixture table (1), and further comprises a turnover structure (3), wherein the turnover structure (3) comprises a speed reducing motor (31), a support plate (32), a rotary plate (33), cylindrical nails (34), a connecting rod (35), turnover blocks (36), a positioning plate (37), a fixing rod (38) and a turnover plate (39), the speed reducing motor (31) is fixedly connected to the lower surface of the fixture table (1), the support plate (32) penetrates through an output shaft of the speed reducing motor (31), the rotary plate (33) is fixedly connected to the output shaft end of the speed reducing motor (31), the cylindrical nails (34) are fixedly connected to two opposite side surfaces of the rotary plate (33) and one ends of the rotary plate (33) far away from the output end of the speed reducing motor (31), the connecting rod (35) is rotatably connected to one end of each cylindrical nail (34) far away from the rotary plate (33), the turnover blocks (36) are rotatably connected to the other ends of, one end fixed connection of locating plate (37) is at the lower surface of anchor clamps platform (1), the equal fixedly connected with dead lever (38) of upper surface of upset piece (36), and the other end fixedly connected with of dead lever (38) turns over board (39), and turns over the upper surface parallel and level of board (39) and the upper surface of anchor clamps platform (1), and the output of control switch group (2) is connected with gear motor (31)'s input electricity.
3. A printed circuit board test fixture as recited in claim 1, wherein: two sections of threads are arranged on the side faces of two ends of the adjusting screw rod (55), the adjusting screw rod is symmetrical about the limiting block (56), and the spiral directions of the threads arranged on the two ends are opposite.
4. A printed circuit board test fixture as recited in claim 1, wherein: the clamping device further comprises a spring pressing rod (571) and a clamping plate (572), wherein the spring pressing rod (571) is fixedly connected to the bottom surface of the clamping block (57), and the other end of the spring pressing rod (571) is fixedly connected with the clamping plate (572).
5. A printed circuit board test fixture as recited in claim 1, wherein: the turnover plate is characterized by further comprising a positioning frame (6), wherein the positioning frame (6) is fixedly connected to the upper surface of the turnover plate (39), and positioning pins which are uniformly distributed are fixedly connected to the upper surface of the positioning frame (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921576304.7U CN211148719U (en) | 2019-09-23 | 2019-09-23 | Printed circuit board test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921576304.7U CN211148719U (en) | 2019-09-23 | 2019-09-23 | Printed circuit board test fixture |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211148719U true CN211148719U (en) | 2020-07-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921576304.7U Active CN211148719U (en) | 2019-09-23 | 2019-09-23 | Printed circuit board test fixture |
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| Country | Link |
|---|---|
| CN (1) | CN211148719U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129338A (en) * | 2020-09-07 | 2020-12-25 | 安徽理工大学 | Automatic circuit detection device for circuit board |
| CN112964978A (en) * | 2021-02-02 | 2021-06-15 | 北京瓢虫星球信息技术有限公司 | Semiconductor integrated circuit test equipment |
-
2019
- 2019-09-23 CN CN201921576304.7U patent/CN211148719U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112129338A (en) * | 2020-09-07 | 2020-12-25 | 安徽理工大学 | Automatic circuit detection device for circuit board |
| CN112964978A (en) * | 2021-02-02 | 2021-06-15 | 北京瓢虫星球信息技术有限公司 | Semiconductor integrated circuit test equipment |
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