Test fixing device and module power supply testing machine
By designing a test fixing device including a probe fixing plate, a test product track plate and a downward drive assembly, the poor contact problem caused by frequent movement of the test probe in the module power supply test equipment is solved, and more stable and automatic testing is achieved process.
Patent Information
- Application Number
- CN202323660605.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2023-12-29
- Publication Date
- 2025-02-25
- Estimated Expiration
- 2033-12-29
AI Technical Summary
During frequent movement of existing module power testing equipment, the connection between the test probe and the lead is prone to breakage or poor contact, resulting in test failure.
A test fixture was designed, including a probe fixing plate, a test product track plate, a top cover plate and a downward drive assembly. The probe fixing plate and a test product track plate are connected through an elastic component, and the downward drive assembly is used to test the product. Press down so that its pins come into contact with the probe for testing.
Through this test fixing device, poor lead contact caused by frequent movement of the probe is avoided, and the stability of equipment testing and convenience of automatic detection are improved.
Smart Images
Figure CN222529389U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of module power supply testing equipment, in particular to a test fixture and a module power supply testing machine using the test fixture. Background Art
[0002] In the existing module power supply test equipment, in order to facilitate the automation of product testing, a test track is set up, and the test track is set up with test positions for multiple functional tests. When the product moves to any test position, the corresponding functional test is performed on the product. When the product is being tested, after the product is fixed, it is necessary to move the test probe toward the pin direction of the product so that the test probe contacts the pin of the product, and then further power on the test.
[0003] However, this method of moving the test probe may easily cause the lead wire connected to the test probe to break or have poor contact during frequent movements, thereby causing test failure.
[0004] Therefore, it is necessary to consider further optimizing the test fixture structure. Utility Model Content
[0005] The first object of the utility model is to provide a test fixture for improving the test stability of a test device.
[0006] The second purpose of the utility model is to provide a module power supply tester which improves the stability of equipment testing.
[0007] In order to achieve the above-mentioned first purpose, the test fixing device provided by the utility model includes a probe fixing plate, a test product track plate, a top cover plate and a downward pressing drive component, the test product track plate is located between the probe fixing plate and the top cover plate and can move back and forth; the probe fixing plate and the test product track plate are connected by multiple elastic components, and the extension and contraction direction of the elastic components is the same as the movement direction of the test product track plate; the probe fixing plate is provided with a test probe group, the test product track plate is provided with a product test position, and a probe through hole is provided at the bottom of the product test position, and the probe through hole is arranged opposite to the probe in the test probe group; the downward pressing drive component is installed on the top cover plate, the driving end of the downward pressing drive component is facing the product test position, and the downward pressing drive component drives the test product track plate to move in the direction of the probe fixing plate.
[0008] It can be seen from the above scheme that the test fixture of the utility model is provided with a probe fixing plate and a test product track plate, and the probe fixing plate and the test product track plate are connected by an elastic component, and a downward driving component is provided on the top of the test product track plate, and the test product of the test product track plate can be pressed down by the downward driving component, so that the pins of the test product are in contact with the probes on the probe fixing plate, so that further test operations can be performed. After the test is completed, the downward driving component is retracted and the elastic component is reset, so that the test product track plate is restored to dock with the test track, which is convenient for realizing automatic detection of the product. At the same time, poor lead contact caused by frequent movement of the probe can be avoided, thereby improving the testing stability of the equipment.
[0009] In a further solution, the test product track plate is provided with a product inlet end and a product outlet end, a pin groove is provided between the product outlet end and the product outlet end, the opening direction of the pin groove is toward the top cover plate, and the probe through hole is provided in communication with the pin groove.
[0010] It can be seen that by setting the pin groove, the test product can be easily moved along the pin groove, which is convenient for guiding the test product. At the same time, the probe through hole is connected to the pin groove, which can facilitate the alignment of the probe and the pin of the test product.
[0011] In a further scheme, the elastic component includes a cylinder, a telescopic column and a spring. The cylinder is provided with an installation cavity, the opening of the installation cavity is located at the top of the cylinder, and the telescopic column is inserted into the installation cavity through the opening of the installation cavity; the telescopic column is provided with a spring mounting portion, the spring is sleeved on the spring mounting portion, the first end of the spring abuts against the telescopic column, and the second end of the spring abuts against the bottom of the installation cavity; the cylinder is installed on the probe fixing plate, and the telescopic column is installed on the test product track plate.
[0012] It can be seen that the elastic component can realize the telescopic movement of the telescopic column by setting the cylinder, the telescopic column and the spring, and utilize the elasticity of the spring, thereby realizing the reciprocating movement of the test product track plate.
[0013] In a further solution, the downward pressure drive assembly is a pneumatic cylinder or a hydraulic cylinder.
[0014] From this we can see that using a pneumatic cylinder or a hydraulic cylinder for driving can facilitate control.
[0015] In a further solution, the test fixture also includes a blocking component, which is located at the exit end of the product testing position; the blocking component is provided with a driving device and a blocking member, the driving device drives the blocking member to perform telescopic movement, and the blocking member is used to block the product at the product testing position during the product testing and release the product when the test is completed.
[0016] It can be seen that by providing a blocking member, the product can be blocked at the product testing position during product testing, and the product can be released when the test is completed, so that the product moves to the next testing position.
[0017] In a further embodiment, the driving device is a pneumatic cylinder or a hydraulic cylinder.
[0018] From this we can see that using a pneumatic cylinder or a hydraulic cylinder for driving can facilitate control.
[0019] In a further solution, the top cover is also provided with a position sensor, and the position sensor is used to detect whether the product moves to the product testing position.
[0020] It can be seen that by providing a position sensor, it is possible to easily detect whether the test product has moved to the product test position, thereby further performing test control.
[0021] In a further embodiment, the position sensor is an infrared sensor.
[0022] It can be seen that using infrared sensors as position sensors can improve the sensitivity of detection.
[0023] In order to achieve the second purpose of the utility model, the modular power supply testing machine provided by the utility model includes a machine platform, the machine platform is provided with a test platform panel inclined from the top to the bottom of the machine platform, the test platform panel is provided with a test track for conveying products, and the test track includes a test fixture; the test fixture adopts the above-mentioned test fixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 It is a structural diagram of an embodiment of a module power supply tester of the utility model.
[0025] Figure 2 yes Figure 1 Enlarged view of point A in the middle.
[0026] Figure 3 It is a structural cross-sectional view of a test fixture installed at a test bench panel in an embodiment of a modular power supply tester of the utility model.
[0027] Figure 4 It is a structural diagram of a test fixture in an embodiment of a modular power supply tester of the utility model.
[0028] Figure 5 It is a structural sectional view of a test fixture in an embodiment of a modular power supply tester of the utility model.
[0029] Figure 6 It is a structural exploded view of the test fixture in the embodiment of the modular power supply tester of the utility model.
[0030] Figure 7It is a structural cross-sectional view of the elastic component in the embodiment of the modular power supply tester of the utility model.
[0031] Figure 8 It is a structural exploded view of the elastic component in the embodiment of the modular power supply tester of the utility model.
[0032] Fig. 9 It is a structural exploded view of the modular power supply tester embodiment of the utility model when the product moves to the test fixture.
[0033] The present invention will be further described below with reference to the accompanying drawings and embodiments. DETAILED DESCRIPTION
[0034] Module power supply test machine embodiment:
[0035] like Figure 1 As shown, in this embodiment, the modular power supply tester includes a machine platform 1, the machine platform 1 is provided with a test platform panel 11 inclined from the top to the bottom of the machine platform 1, the test platform panel 11 is provided with a test track 2 for conveying products, and the test platform panel 11 is inclined so that the product to be tested can move on the test track 2 by its own gravity. Figure 2 and Figure 3 The test track 2 includes a test fixture 3. The number of the test fixtures 3 can be set as needed. In this embodiment, the number of the test fixtures 3 is two, and the test fixtures 3 are sequentially arranged along the extension direction of the test track 2.
[0036] See also Figure 4 , Figure 5 and Figure 6 In this embodiment, the test fixture 3 includes a probe fixing plate 31, a test product track plate 32, a top cover plate 33 and a downward driving assembly 34. The test product track plate 32 is located between the probe fixing plate 31 and the top cover plate 33 and can move back and forth. The probe fixing plate 31 and the test product track plate 32 are connected by a plurality of elastic components 35. The expansion and contraction direction of the elastic components 35 is the same as the movement direction of the test product track plate 32. The number of elastic components 35 can be set as needed. In this embodiment, the number of elastic components 35 is four.
[0037] The probe fixing plate 31 is provided with a test probe group, the test product track plate 32 is provided with a product test position 321, the bottom of the product test position 321 is provided with a probe through hole 322, and the probe through hole 322 is arranged opposite to the probe 311 in the test probe group. The pressing drive assembly 34 is installed on the top cover plate 33, and the driving end 341 of the pressing drive assembly 34 faces the product test position 321, and the pressing drive assembly 34 drives the test product track plate 32 to move in the direction of the probe fixing plate 31. The pressing drive assembly 34 is a cylinder or a hydraulic cylinder.
[0038] The test product track plate 32 is provided with a product inlet end and a product outlet end, and a pin groove 323 is provided between the product outlet end and the product outlet end, the opening direction of the pin groove 323 is toward the top cover plate 33, and the probe through hole 322 is connected with the pin groove 323. The number of the pin grooves 323 can be set according to the pin position of the product to be tested. By setting the pin grooves 323, it is convenient for the test product to move along the pin grooves 323, and it is convenient to guide the test product. At the same time, the probe through hole 322 is connected with the pin groove 323, which can facilitate the alignment of the probe 311 with the pin of the test product.
[0039] The test fixture 3 also includes a blocking assembly 36, which is located at the product outlet end of the product test position 321. The blocking assembly 36 is provided with a blocking member 361 and a driving device 362, and the driving device 362 drives the blocking member 361 to perform telescopic movement, and the blocking member 361 is used to block the product at the product test position 321 during product testing and release the product when the test is completed. Preferably, the driving device 362 is a cylinder or a hydraulic cylinder. Since the test bench panel 11 is arranged at an angle, it is necessary to set a blocking assembly 36 to block the product so as to block the product at the product test position 321 for testing.
[0040] In addition, the top cover plate 33 is also provided with a position sensor 37, which is used to detect whether the product has moved to the product test position 321. The position sensor 37 is an infrared sensor, and the structure of the infrared sensor is a technology well known to those skilled in the art, which will not be described in detail here. By providing the position sensor 37, it is convenient to detect whether the test product has moved to the product test position 321, so that further test control can be performed.
[0041] See also Figure 7 and Figure 8In this embodiment, the elastic component 35 includes a cylinder 351, a telescopic column 352 and a spring 353. The cylinder 351 is provided with a mounting cavity 3511. The opening of the mounting cavity 3511 is located at the top of the cylinder 351. The telescopic column 352 is inserted into the mounting cavity 3511 through the opening of the mounting cavity 3511. The telescopic column 352 is provided with a spring mounting portion 3521. The spring 353 is sleeved on the spring mounting portion 3521. The first end of the spring 353 abuts against the telescopic column 352, and the second end of the spring 353 abuts against the bottom of the mounting cavity 3511. The bottom of the installation cavity 3511 is also provided with a through hole 3512, and the spring installation part 3521 passes through the through hole 3512 and is exposed to the cylinder 351. A clamping groove 3522 is provided at one end of the spring installation part 3521 exposed to the cylinder 351. A clamping ring 354 is installed in the clamping groove 3522, and the spring installation part 3521 is restricted to move in the installation cavity 3511 by the clamping ring 354. The cylinder 351 is installed on the probe fixing plate 31, and the telescopic column 352 is installed on the test product track plate 32. The elastic component 35 is provided with the cylinder 351, the telescopic column 352 and the spring 353, and the elasticity of the spring 353 is utilized to realize the telescopic movement of the telescopic column 352, thereby realizing the reciprocating movement of the test product track plate 32.
[0042] When the module power supply tester of this embodiment is working, see Fig. 9 , the product 4 to be tested moves in the test track 2 by its own gravity. The product 4 to be tested is a module power supply. When it moves to the test fixture 3, the blocking member 361 of the blocking assembly 36 blocks the product 4 and blocks the product 4 at the product test position 321. At this time, the position sensor 37 detects that there is a product 4 at the product test position 321, and the product test can be performed. Therefore, the driving end 341 of the downward driving assembly 34 is controlled to perform a downward operation, and the product 4 and the test product track plate 32 are pressed downward in the direction of the probe fixing plate 31, so that the pin 41 of the product 4 is in contact with the corresponding probe 311. Then, the test circuit can supply power to the product 4 through the probe 311 and obtain test data to detect whether the function of the product 4 is qualified. After the test is completed, the driving end 341 of the downward driving component 34 is controlled to rise, and the elastic component 35, under the action of the spring 353, resets the test product track plate 32, so that the test product track plate 32 is docked with the test track 2. Finally, the driving device 362 drives the blocking member 361 to release the product 4, so that the product 4 continues to move along the test track 2 to the next process position.
[0043] As can be seen from the above, the test fixture 3 of the utility model is provided with a probe fixing plate 31 and a test product track plate 32, and the probe fixing plate 31 and the test product track plate 32 are connected by an elastic component 35. A downward driving component 34 is provided on the top of the test product track plate 32, and the test product on the test product track plate 32 can be pressed down by the downward driving component 34, so that the pin of the test product contacts the probe 311 on the probe fixing plate 31, so that further test operations can be performed. After the test is completed, the downward driving component 34 is retracted and the elastic component 35 is reset, so that the test product track plate 32 is restored to dock with the test track 2, so as to realize automatic detection of the product. At the same time, poor contact of the leads caused by frequent movement of the probe 311 can be avoided, thereby improving the testing stability of the equipment.
[0044] It should be noted that the above are only preferred embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any non-substantial modifications made to the present invention using this concept also fall within the protection scope of the present invention.
Claims
1. A test fixture, characterized in that: It includes a probe fixing plate, a test product track plate, a top cover plate and a downward pressing driving assembly, wherein the test product track plate is located between the probe fixing plate and the top cover plate and can move back and forth; The probe fixing plate and the test product track plate are connected by a plurality of elastic components, and the expansion and contraction direction of the elastic components is the same as the movement direction of the test product track plate; The probe fixing plate is provided with a test probe group, the test product track plate is provided with a product test position, the bottom of the product test position is provided with a probe through hole, and the probe through hole is arranged opposite to the probe in the test probe group; The downward pressing driving assembly is installed on the top cover plate, and the driving end of the downward pressing driving assembly faces the product testing position. The downward pressing driving assembly drives the testing product track plate to move toward the direction of the probe fixing plate.
2. The test fixture according to claim 1, characterized in that: The test product track plate is provided with a product inlet end and a product outlet end, a pin groove is provided between the product outlet end and the product outlet end, the opening direction of the pin groove is toward the top cover plate, and the probe through hole is provided in communication with the pin groove.
3. The test fixture according to claim 1, characterized in that: The elastic component comprises a cylinder, a telescopic column and a spring, the cylinder is provided with a mounting cavity, the opening of the mounting cavity is located at the top of the cylinder, and the telescopic column is inserted into the mounting cavity through the opening of the mounting cavity; The telescopic column is provided with a spring mounting portion, the spring is sleeved on the spring mounting portion, the first end of the spring abuts against the telescopic column, and the second end of the spring abuts against the bottom of the mounting cavity; The cylinder is mounted on the probe fixing plate, and the telescopic column is mounted on the test product track plate.
4. The test fixture according to any one of claims 1 to 3, characterized in that: The downward pressing driving component is a cylinder or a hydraulic cylinder.
5. The test fixture according to any one of claims 1 to 3, characterized in that: The test fixture further comprises a blocking component, wherein the blocking component is located at an exit end of the product test position; The blocking assembly is provided with a driving device and a blocking member, wherein the driving device drives the blocking member to perform telescopic movement, and the blocking member is used to block the product at the product testing position during product testing and release the product when the test is completed.
6. The test fixture according to claim 5, characterized in that: The driving device is a pneumatic cylinder or a hydraulic cylinder.
7. The test fixture according to any one of claims 1 to 3, characterized in that: The top cover is also provided with a position sensor, and the position sensor is used to detect whether the product moves to the product testing position.
8. The test fixture according to claim 7, characterized in that: The position sensor is an infrared sensor.
9. A modular power supply tester, comprising a machine platform, the machine platform being provided with a test platform panel inclined from the top of the machine platform to the bottom, the test platform panel being provided with a test track for conveying products, the test track comprising the test fixture; characterized in that: The test fixture adopts the test fixture according to any one of claims 1 to 8.