CN216117914U - High-precision combined type PCB test fixture - Google Patents
High-precision combined type PCB test fixture Download PDFInfo
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- CN216117914U CN216117914U CN202122647010.2U CN202122647010U CN216117914U CN 216117914 U CN216117914 U CN 216117914U CN 202122647010 U CN202122647010 U CN 202122647010U CN 216117914 U CN216117914 U CN 216117914U
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Abstract
The utility model discloses a high-precision combined type PCB test fixture, belongs to the field of circuit boards, and solves the problems of low efficiency and much time consumption of the existing double-sided PCB turnover technology; the test element in this scheme shifts up the in-process of keeping away from two-sided PCB vertically, the turn-over component is at first triggered and makes the unsettled centre that is located test element and base of two-sided PCB, then order about two-sided PCB upset one hundred eighty degrees, carry out two-sided PCB turn-over when test element removes, the time cost has been saved, the efficiency of software testing is improved, in addition, two big faces are abundant with the air contact, can distribute away the heat that produces in the test procedure of last one side fast.
Description
Technical Field
The utility model belongs to the field of circuit boards, and particularly relates to a high-precision composite PCB testing jig.
Background
The circuit in the double-sided PCB is positioned in two sides of the PCB, the double-sided PCB is connected by a via hole in the middle, therefore, when the double-sided PCB is tested, in order to ensure the accuracy of the test result and know where the unqualified product is positioned, the two sides of the double-sided PCB need to be tested, the double-sided PCB needs to be turned over, in the prior art, the turning over is generally realized by manual operation or mechanical arm turning, the manual turning over efficiency is low, the cost of mechanical arm turning over is high, when the mechanical arm is turned over, a test element is firstly required to be far away from the double-sided PCB, then the double-sided PCB is turned over by a mechanical arm, after the turning over is finished, the test element is close to the double-sided PCB and tests the other side of the double-sided PCB, the whole process is independent and can not be matched with each other, namely, the double-sided PCB turning over can not be carried out when the test element is far away from the double-sided PCB, therefore, the utility model provides a high-precision composite PCB test fixture.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems of low efficiency and much time consumption of the existing double-sided PCB turnover technology in the background technology, the utility model provides a high-precision composite PCB test fixture.
The purpose of the utility model can be realized by the following technical scheme:
the utility model provides a high-accuracy combined type PCB test fixture, includes the base, is provided with the support on the base, installs the lift driving piece on the support, and test element is installed to the output of lift driving piece, is provided with turn-over mechanism on the base, and turn-over mechanism is used for carrying out the turn-over to the double-sided PCB that is located on the base and handles, and turn-over mechanism is provided with two sets ofly and is located the both sides of double-sided PCB respectively.
As a further improvement of the scheme, the turnover mechanism comprises a turnover component and a clamping component, the clamping component is used for clamping the double-sided PCB, and the turnover component is used for drawing the clamping component and the double-sided PCB to turn over by one hundred eighty degrees.
As a further improvement of the scheme, the clamping member comprises a clamping frame, a clamping rod is horizontally and slidably mounted on the clamping frame, the clamping rod is divided into two parts along the self axial direction and is respectively a cylindrical section which is slidably connected with the clamping frame and a circular table section which is mounted on the end part of the cylindrical section facing the double-sided PCB, the large end of the circular table section is connected with the cylindrical section, and the small end of the circular table section is a clamping end;
the cylindrical section of supporting rod outside is provided with external step and external step is located the holding frame towards one side of two-sided PCB, and the outside cover of supporting rod is equipped with the spring that is located between external step and the holding frame.
As a further improvement of the scheme, the turnover component comprises a rotating shaft and racks, the racks are vertically arranged, the racks are provided with three groups of racks a, b and c, the racks a and the racks c are fixedly mounted on the base, the racks b are connected with the test element through a connecting frame, and the distance direction between the racks a and the racks b is parallel to the ground and perpendicular to the axial direction of the clamping rods.
As a further improvement of the scheme, the axial direction of the rotating shaft is parallel to the axial direction of the clamping rod, the output end of the rotating shaft is connected with the clamping frame, the input end of the rotating shaft is located between the rack a and the rack b, the gear a is installed at the input end of the rotating shaft in the axial direction, and the gear a is meshed with the rack a and the gear a is meshed with the rack b.
As a further improvement of the scheme, a gear b is further mounted on the outer portion of the rotating shaft through a ratchet wheel piece, in the process that the gear b vertically moves upwards, the gear b is in contact with and meshed with the rack c, the inner ring of the ratchet wheel piece is sleeved on the outer portion of the rotating shaft, the gear b is sleeved on the outer ring of the ratchet wheel piece, and the gear b rotates to pull the rotating shaft to rotate in a single direction.
Compared with the prior art, the utility model has the beneficial effects that:
1. in the process that the test element moves upwards vertically to be far away from the double-sided PCB, the turnover component is triggered firstly, the double-sided PCB is suspended between the test element and the base, then the double-sided PCB is driven to turn over by one hundred eighty degrees, and the double-sided PCB is turned over while the test element moves, so that the time cost is saved, and the test efficiency is improved;
2. in the process of turning over the double-sided PCB, two large faces are fully contacted with air, and heat generated in the process of testing the upper face can be quickly dissipated.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a partial exploded view of the present invention;
FIG. 3 is a schematic structural diagram of the turn-over mechanism of the present invention;
FIG. 4 is a schematic structural diagram of the turn-over mechanism of the present invention;
FIG. 5 is a partial schematic view of the turn-over member of the present invention;
FIG. 6 is a schematic view of a clamping member according to the present invention;
fig. 7 is a partial structural schematic view of the turn-over member of the present invention.
Reference numerals:
10. a base; 11. a support; 12. a lifting drive member; 13. a test element;
20. a turn-over mechanism;
30. a turn-over member; 31. a rotating shaft; 32. a gear a; 33. a rack a; 34. a rack b; 35. a connecting frame; 36. a gear b; 37. a rack c;
40. a clamping member; 41. a clamping frame; 42. a clamping rod; 43. a spring.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, a high-precision combined type PCB test fixture comprises a base 10, a support 11 is arranged on the base 10, a lifting driving member 12 is installed on the support 11, a test element 13 is installed at an output end of the lifting driving member 12, the lifting driving member 12 is used for pulling the test element 13 to move along a vertical direction, the test element 13 is used for performing performance test on a PCB, the lifting driving member 12 can be realized by a conventional motor screw rod structure, and the test element 13 can be realized by a conventional PCB test technology, which is not repeated.
The base 10 is provided with a turnover mechanism 20, the turnover mechanism 20 is used for turning over the double-sided PCB located on the base 10, and the turnover mechanism 20 is provided with two groups and located on two sides of the double-sided PCB respectively.
During operation, the lifting driving part 12 operates to pull the testing element 13 to move downwards vertically to test one side of the double-sided PCB, after the test is finished, the lifting driving part 12 operates to pull the testing element 13 to move upwards vertically, in the process of moving upwards, the turnover mechanism 20 is triggered to drive the double-sided PCB to turn over for 180 degrees, and then the lifting driving part 12 operates to pull the testing element 13 to move downwards vertically to test the other side of the double-sided PCB.
As shown in fig. 4, the turn-over mechanism 20 includes a turn-over member 30 and a clamping member 40, the clamping member 40 is used for clamping the double-sided PCB, and the turn-over member 30 is used for pulling the clamping member 40 to turn over the double-sided PCB by one hundred eighty degrees.
As shown in fig. 6, the clamping member 40 includes a clamping frame 41, and a clamping rod 42 is horizontally slidably mounted on the clamping frame 41.
The clamping rod 42 is divided into two parts along the axial direction thereof: the clamping frame 41 comprises a cylindrical section which is in sliding connection with the clamping frame, and a circular table section which is arranged on the end part of the cylindrical section facing the double-sided PCB, wherein the large end of the circular table section is connected with the cylindrical section, and the small end of the circular table section is a clamping end.
The outside of the cylinder section of clamping rod 42 is provided with external step and external step is located the one side of holding frame 41 towards double-sided PCB, and the outside cover of clamping rod 42 is equipped with the spring 43 that is located between external step and holding frame 41.
The double-sided PCB is placed on the base 10, then, the lifting driving piece 12 runs to pull the testing element 13 to vertically move downwards to test one side of the double-sided PCB, in the downward moving process, the turnover component 30 is triggered to pull the clamping component 40 to synchronously move downwards, in the downward moving process of the clamping component 40, the circular truncated cone section can be in contact with the double-sided PCB, the clamping rod 42 is further pushed to move close to the clamping frame 41, when the testing element 13 moves downwards to be in contact with the double-sided PCB, the clamping end of the clamping rod 42 is in contact with the side face of the double-sided PCB, the clamping rod 42 is driven to abut against the double-sided PCB by the elastic force of the spring 43, and the clamping rods 42 in the two groups of clamping mechanisms 20 are matched to complete clamping of the double-sided PCB.
As shown in fig. 4-7, the turn-over member 30 includes a rotating shaft 31 and three sets of vertically arranged racks: the rack a33, the rack b34 and the rack c37 are vertically and fixedly arranged on the base 10, the rack a33 and the rack c37 are both fixedly arranged on the base 10, the rack b34 is connected with the test element 13 through a connecting frame 35, and the distance direction between the rack a33 and the rack b34 is parallel to the ground and perpendicular to the axial direction of the clamping rod 42.
The axial direction of the rotating shaft 31 is parallel to the axial direction of the clamping rod 42, the output end of the rotating shaft 31 is connected with the clamping frame 41, the input end of the rotating shaft 31 is positioned between the rack a33 and the rack b34, the input end of the rotating shaft 31 is provided with a gear a32 in the axial direction, and the gear a32 is meshed with the rack a33, and the gear a32 is meshed with the rack b 34.
In the process of moving the test element 13 vertically upwards, the rack a33, the rack b34 and the gear a32 are matched to pull the gear a32 to move vertically upwards, the upward movement displacement of the test element 13 is equal to twice of the upward movement displacement of the gear a32, the gear a32 moves upwards to pull the rotating shaft 31, the clamping member 40 and the double-sided PCB to move upwards synchronously, and in the process of moving upwards, the double-sided PCB is suspended and located at the middle position between the test element 13 and the base 10.
The outer part of the rotating shaft 31 is also provided with a gear b36 through a ratchet piece, and in the process that the gear b36 moves vertically upwards, the gear b36 is in contact with and meshed with the rack c37, the inner ring of the ratchet piece is sleeved on the outer part of the rotating shaft 31, the gear b36 is sleeved on the outer ring of the ratchet piece, and the gear b36 rotates to pull the rotating shaft 31 to rotate in a single direction.
In the process of moving the test element 13 vertically upwards, the gear, the rotating shaft 31, the clamping member 40 and the double-sided PCB are firstly pulled to move upwards, in the process of moving upwards, the double-sided PCB is suspended and located at the middle position between the test element 13 and the base 10, when the rotating shaft 31 moves upwards to pull the gear b36 to synchronously move upwards to be meshed with the rack c37, then, in the process of moving upwards the test element 13, the gear b36 rotates and pulls the rotating shaft 31, the clamping member 40 and the double-sided PCB to synchronously rotate, and when the double-sided PCB rotates 180 degrees, the test element 13 stops moving upwards.
The working principle of the utility model is as follows:
first, a double-sided PCB is placed on a base 10;
then, the lifting driving component 12 operates to pull the testing component 13 to move downwards vertically to test one side of the double-sided PCB, during the downward movement of the testing component 13, through the matching of the rack a33, the rack b34 and the gear a32, the traction gear a32 moves vertically downwards, the gear a32 moves downwards to pull the rotating shaft 31, the gear b36 and the clamping component 40 to move downwards synchronously, in the process of moving downwards of the gear b36, due to the existence of the ratchet wheel piece, the gear b36 rotates and can not pull the rotating shaft 31 to rotate, the circular truncated cone section can be contacted with the double-sided PCB during the downward movement process of the clamping component 40, so that the clamping rod 42 is pushed to move the round table section close to the clamping frame 41, when the test element 13 moves downwards to contact with the double-sided PCB, the clamping ends of the clamping rods 42 are in contact with the side faces of the double-sided PCB, the elastic force of the springs 43 drives the clamping rods 42 to press the double-sided PCB, and the clamping rods 42 in the two groups of clamping mechanisms 20 are matched to clamp the double-sided PCB;
next, the test element 13 tests one side of the double-sided PCB;
after the test is finished, the lifting driving piece 12 operates to pull the test element 13 to move vertically upwards, in the process that the test element 13 moves upwards, the rack a33, the rack b34 and the gear a32 are matched, the gear a32 is pulled to move vertically upwards, the upward movement of the test element 13 is equal to twice of the upward movement of the gear a32, the gear a32 moves upwards to pull the rotating shaft 31, the gear b36, the clamping member 40 and the double-sided PCB to move upwards synchronously, and the double-sided PCB is suspended and located at the middle position of the test element 13 and the base 10;
when the gear b36 moves upwards to be meshed with the rack c37, then, in the process that the test element 13 moves upwards, the gear b36 rotates and pulls the rotating shaft 31 to synchronously rotate through the ratchet wheel piece, the rotating shaft 31 rotates to pull the clamping component 40 and the double-sided PCB to synchronously rotate, and when the double-sided PCB rotates 180 degrees, the test element 13 stops moving upwards, and the double-sided PCB finishes the turnover;
then, the lifting driving member 12 operates to pull the testing element 13 to move vertically downwards, in the downward moving process of the testing element 13, the rack a33, the rack b34 and the gear a32 are matched to pull the gear a32 to move vertically downwards, the gear a32 moves downwards to pull the rotating shaft 31, the gear b36, the clamping member 40 and the double-sided PCB to move downwards synchronously, when the double-sided PCB moves downwards to be positioned on the base 10, the testing element 13 is in contact with the double-sided PCB, and the other side of the double-sided PCB is tested through the testing element 13.
In the embodiments provided by the present invention, it should be understood that the disclosed apparatus, device and method can be implemented in other ways. For example, the above-described apparatus embodiments are merely illustrative, and for example, the division of the modules is only one logical functional division, and there may be other divisions when the actual implementation is performed; the modules described as separate parts may or may not be physically separate, and parts displayed as modules may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the method of the embodiment.
It will also be evident to those skilled in the art that the utility model 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 utility model 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 signs in the claims shall not be construed as limiting the claim concerned.
Furthermore, it is obvious that the word "comprising" does not exclude other elements or steps, and the singular does not exclude the plural. A plurality of units or means recited in the system claims may also be implemented by one unit or means in software or hardware. The terms second, etc. are used to denote self-contained vehicular sound collection devices and do not denote any particular order.
Finally, it should be noted that the above examples are only intended to illustrate the technical process of the present invention and not to limit the same, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical process of the present invention without departing from the spirit and scope of the technical process of the present invention.
Claims (6)
1. The utility model provides a high-accuracy combined type PCB test fixture, includes base (10), is provided with support (11) on base (10), installs lift driving piece (12) on support (11), and test element (13) are installed to the output of lift driving piece (12), its characterized in that, be provided with turn-over mechanism (20) on base (10), turn-over mechanism (20) are used for carrying out the turn-over to the two-sided PCB that lies in on base (10) and handle, and turn-over mechanism (20) are provided with two sets ofly and lie in the both sides of two-sided PCB respectively.
2. The fixture according to claim 1, wherein the turn-over mechanism (20) comprises a turn-over member (30) and a clamping member (40), the clamping member (40) is used for clamping the double-sided PCB, and the turn-over member (30) is used for drawing the clamping member (40) and the double-sided PCB to turn over by one hundred eighty degrees.
3. The high-precision combined type PCB testing jig as recited in claim 2, wherein the clamping member (40) comprises a clamping frame (41), a clamping rod (42) is horizontally and slidably mounted on the clamping frame (41), the clamping rod (42) is divided into two parts along the axial direction thereof, and is respectively a cylindrical section slidably connected with the clamping frame (41) and a circular truncated cone section mounted on the end portion of the cylindrical section facing the double-sided PCB, the large end of the circular truncated cone section is connected with the cylindrical section, and the small end of the circular truncated cone section is a clamping end;
the cylindrical section of the clamping rod (42) is externally provided with an external step, the external step is positioned on one side, facing the double-sided PCB, of the clamping frame (41), and a spring (43) positioned between the external step and the clamping frame (41) is sleeved on the outer portion of the clamping rod (42).
4. The high-precision combined type PCB testing jig as recited in claim 3, wherein the turn-over member (30) comprises a rotating shaft (31) and a rack, the rack is vertically arranged, the rack is provided with three groups of racks a (33), b (34) and c (37), the racks a (33) and c (37) are both fixedly mounted on the base (10), the rack b (34) is connected with the testing element (13) through a connecting frame (35), and the distance direction between the rack a (33) and the rack b (34) is parallel to the ground and perpendicular to the axial direction of the clamping rod (42).
5. The high-precision combined type PCB testing jig as recited in claim 4, wherein the axial direction of the rotating shaft (31) is parallel to the axial direction of the clamping rod (42), the output end of the rotating shaft (31) is connected with the clamping frame (41), the input end is located between the rack a (33) and the rack b (34), the input end of the rotating shaft (31) is provided with the gear a (32) through the axial direction, and the gear a (32) is engaged with the rack a (33) and the gear a (32) is engaged with the rack b (34).
6. The high-precision combined type PCB testing jig is characterized in that a gear b (36) is further mounted on the outer portion of the rotating shaft (31) through a ratchet member, in the process that the gear b (36) vertically moves upwards, the gear b (36) is in contact with and meshed with a rack c (37), the inner ring of the ratchet member is sleeved on the outer portion of the rotating shaft (31), the gear b (36) is sleeved on the outer ring of the ratchet member, and the gear b (36) rotates to pull the rotating shaft (31) to rotate in a single direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122647010.2U CN216117914U (en) | 2021-11-01 | 2021-11-01 | High-precision combined type PCB test fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122647010.2U CN216117914U (en) | 2021-11-01 | 2021-11-01 | High-precision combined type PCB test fixture |
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| Publication Number | Publication Date |
|---|---|
| CN216117914U true CN216117914U (en) | 2022-03-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122647010.2U Active CN216117914U (en) | 2021-11-01 | 2021-11-01 | High-precision combined type PCB test fixture |
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| CN (1) | CN216117914U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559635A (en) * | 2023-07-11 | 2023-08-08 | 深圳市常丰激光刀模有限公司 | Universal test die and method for printed circuit board |
-
2021
- 2021-11-01 CN CN202122647010.2U patent/CN216117914U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116559635A (en) * | 2023-07-11 | 2023-08-08 | 深圳市常丰激光刀模有限公司 | Universal test die and method for printed circuit board |
| CN116559635B (en) * | 2023-07-11 | 2023-09-12 | 深圳市常丰激光刀模有限公司 | Universal test die and method for printed circuit board |
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