An automated test fixture applicable to multiple types of press equipment

Abstract

The utility model discloses a kind of automation test fixture that can be used for multiple types of press equipment, it is related to product testing technical field, including lower die group and upper die group, the upper die group and lower die group are clamped by press;Test station is provided on the lower die group, test module is provided on the upper die group, the lower die group connects power supply, the test module connects computer;After the upper die group and lower die group are clamped, to be measured product is connected with test module by connecting piece;The upper die group and lower die group are connected with press by connecting piece, when carrying out product test, only to be measured product can be placed in test station, press can automatically complete test process, and, modular design makes that test fixture is suitable for different types of press, improve the applicability of test fixture, reduce the cost of repeated development test fixture, also can greatly improve the test efficiency of to be measured product.

Description

Technical Field

[0001] This utility model relates to the field of product testing technology, specifically an automated testing fixture applicable to various types of press equipment. Background Technology

[0002] PCBA test fixtures, also known as test jigs or test fixtures, are customized tools specifically designed for functional, performance, and reliability testing of printed circuit board assemblies. They act as a bridge between the PCBA under test and automated test equipment. Through precise mechanical structures and electronic interfaces, such as probes and connectors, the fixture accurately and reliably connects the signals of the test equipment to specific test points on the PCBA, thereby simulating the actual working environment and achieving efficient and consistent automated testing. During the PCBA testing phase, a press is required for connection. The press equipment used in different testing phases has different structures, such as manual presses and automated presses. This results in test fixtures not being universal, requiring repeated development, which increases costs and delays in implementation. Therefore, there is an urgent need for an automated testing fixture that can be used for various types of press equipment to solve the above-mentioned technical problems. Summary of the Invention

[0003] The purpose of this utility model is to provide an automated test fixture technical solution that can be used for multiple types of press equipment, in order to solve the problem in the prior art that press equipment is required for connection in the PCBA testing stage, and the press equipment used in different testing stages has an inconsistent structure, which makes the test fixtures non-universal, requires repeated development, and causes increased costs and delays in implementation.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an automated testing fixture applicable to multiple types of press equipment, comprising a lower module and an upper module, wherein the upper module and the lower module are joined together by a press; The lower module has a test station, the upper module has a pluggable test module, the lower module is connected to the power supply, and the test module is connected to the computer. After the upper and lower modules are combined, the product under test is connected to the test module via a connector.

[0005] According to the above technical solution, by fixing the lower module and the upper module on different types of presses, the test fixture can be controlled by the press to test the product under test, which is more applicable.

[0006] Preferably, a probe male socket is provided at the bottom of the upper module, and a probe is provided on the probe male socket; The lower module is equipped with a probe socket on its top, and the probe socket has a probe groove. The probe slot is electrically connected to the test station.

[0007] According to the above technical solution, the lower module and the upper module are combined to connect the male probe socket and the female probe socket, complete the conduction of the test circuit, and realize the testing of the product under test.

[0008] Preferably, the probe socket is installed in the telescopic cavity, and an elastic element is provided at the bottom of the probe socket.

[0009] According to the above technical solution, the elastic element allows the probe female to move inside the telescopic cavity, so that when the probe male is connected to the probe female, a certain degree of buffering is achieved, avoiding damage caused by hard connection or miscalibration of the probe male and probe female, or preventing damage to other probes when one probe is bent.

[0010] Preferably, a limiting ring is provided at the top of the telescopic cavity and a limiting plate is provided at the bottom of the probe base. The limiting ring and the limiting plate cooperate to limit the displacement of the telescopic cavity and the probe base.

[0011] The purpose of the above technical solution is to prevent the probe socket from sliding out of the telescopic cavity and affecting the stability of the test fixture.

[0012] Preferably, the lower module has at least two guide grooves at the top and the upper module has guide posts at the bottom that match the guide grooves.

[0013] According to the above technical solution, the design of the guide groove and guide post can ensure that the lower module and the upper module are aligned when connected, further ensuring the accuracy of the connection between the male probe socket and the female probe socket.

[0014] Preferably, the lower module includes a base, a first connecting rod, and a lower fixture; The base and the lower fixture are connected by a first connecting rod, and the base is used to connect to the bottom of the press.

[0015] Preferably, the upper module includes an upper fixture, a second connecting rod, and a top plate; The upper fixture is connected to the top plate via a second connecting rod, and the top plate is used to connect to the top of the press.

[0016] According to the above technical solution, the design of the base and top plate allows the lower and upper modules of the test fixture to be connected and fixed with different types of presses, thereby making the entire test fixture applicable to different types of presses and improving the applicability of the test fixture.

[0017] Compared with the prior art, the beneficial effects of this utility model are: This invention divides the test fixture into two parts through the design of a lower module and an upper module. These parts can be installed on different types of presses via connectors, improving the applicability of the test fixture. In addition, the design of guide grooves and guide pillars ensures the accuracy of the connection between the lower and upper modules, preventing damage when the male and female probe seats are connected. Furthermore, a telescopic cavity is provided below the female probe seat, which, together with an elastic element, provides a certain degree of buffering when the male and female probe seats are connected. When one probe is bent and damaged, it can prevent damage to other probes, thereby extending the service life of the test fixture. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the automated testing fixture of this utility model; Figure 2 This is a schematic diagram of the lower module of the automated testing fixture of this utility model; Figure 3 This is a schematic diagram of the upper module in the automated testing fixture of this utility model; Figure 4 This is a schematic diagram of the probe socket in the automated testing fixture of this utility model; Figure 5 This is a cross-sectional view of the probe socket in the automated testing fixture of this utility model; Figure 6 This is a schematic diagram showing the positional relationship of the mounting components in the automated testing fixture of this utility model; Figure 7 This is a schematic diagram of the press structure of this utility model; Figure 8 This is a first-view structural schematic diagram of the sliding plate of this utility model; Figure 9 This is a structural schematic diagram of the sliding plate of this utility model from a second perspective.

[0019] The diagram is labeled as follows: 100, lower module; 101, base; 102, fixing screw hole; 103, first connecting rod; 104, lower fixture; 105, testing station; 106, guide groove; 107, probe socket; 107-1, telescopic cavity; 107-2, elastic element; 107-3, limiting ring; 107-4, limiting plate; 107-5, probe groove. 200. Upper module; 201. Upper fixture; 202. Test module; 203. Guide post; 204. Probe male socket; 204-1. Probe; 205. Second connecting rod; 206. Top plate; 300. Power cord; 400. Ribbon cable; 500. Press; 501. Fixed base; 502. Top base; 503. Sliding column; 504. Sliding plate; 505. Telescopic component; 506. Slide groove; 507. Engaging component; 508. Locking component; 600. Installation components. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example: Figure 1 As shown, this utility model provides an automated test fixture applicable to various types of press equipment, including a lower module 100 and an upper module 200. It is mainly used for online testing, programming, or functional testing of the product under test, such as voltage testing, current testing, and frequency testing.

[0022] like Figure 2 As shown, the lower module 100 is powered by a power cord 300. The lower module 100 includes a base 101, a first connecting rod 103, and a lower fixture 104. The base 101 and the lower fixture 104 are connected by the first connecting rod 103. The lower fixture 104 is provided with a test station 105, a guide groove 106, and a probe socket 107. The points of the test station 105 and the points of the probe socket 107 are electrically connected so that the points of the product to be tested can be led out through the probe socket 107 for convenient testing.

[0023] like Figure 3 As shown, the upper module 200 is connected to the computer via a ribbon cable 400. The upper module 200 includes an upper fixture 201, a second connecting rod 205, and a top plate 206. The upper fixture 201 and the top plate 206 are connected via the second connecting rod 205. A test module 202 is disposed between the upper fixture 201 and the top plate 206. The test module 202 is electrically connected to the upper fixture 201 via pins, FPC ribbon cables, or spring contacts, enabling independent operation of different test modules 202. At the bottom of the upper fixture 201, there are also guide posts 203 and probe male seats 204. The guide posts 203 cooperate with the guide grooves 106 on the lower fixture 104, and the probe male seats 204 cooperate with the probe female seats 107 on the lower fixture 104. When the lower module 100 and the upper module 200 are molded together, the probe 204-1 on the probe male seat 204 is inserted into the probe groove 107-5 on the probe female seat 107, thus completing the connection between the test module 202 and the product under test.

[0024] The design of guide post 203 and guide groove 106 enables precise positioning of lower module 100 and upper module 200 during mold closing, thereby achieving precise docking between probe female seat 107 and probe male seat 204.

[0025] like Figures 4-5 As shown, a telescopic cavity 107-1 is provided below the probe female seat 107, allowing the probe female seat 107 to slide up and down inside the telescopic cavity 107-1. An elastic element 107-2 is provided at the bottom of the probe female seat 107 inside the telescopic cavity 107-1. The elastic element 107-2 can be an elastic component such as a spring or a sheet. Through the design of the elastic element 107-2, a soft connection is achieved when the probe 204-1 on the probe male seat 204 is connected to the probe groove 107-5 on the probe female seat 107, avoiding misalignment that could damage the probe 204-1. At the same time, if a probe 204-1 bends, the soft connection can also prevent the bent probe 204-1 from being completely damaged beyond repair, thereby extending the service life of the test fixture.

[0026] It should be noted that a limiting ring 107-3 is provided at the top of the telescopic cavity 107-1, and a limiting plate 107-4 is provided at the bottom of the probe female seat 107. The mutual restriction between the limiting ring 107-3 and the limiting plate 107-4 prevents the probe female seat 107 from sliding out of the telescopic cavity 107-1.

[0027] In one embodiment of this utility model, such as Figure 7 As shown, a press 500 is provided, which includes a fixed base 501, a top base 502, a sliding column 503, a sliding plate 504, a telescopic component 505, a slide groove 506, a locking component 507, and a locking component 508. The fixed base 501 and the top base 502 are connected by a sliding column 503. A sliding plate 504 is slidably arranged on the sliding column 503. The sliding plate 504 can slide up and down on the sliding column 503 through a telescopic member 505. The telescopic member 505 can be a cylinder, an electric telescopic rod, or other components.

[0028] Specifically, such as Figure 6 As shown, an L-shaped mounting component 600 is provided on the top plate 206 of the upper module 200, and a fixing screw hole 102 is provided on the base 101 of the lower module 100.

[0029] like Figures 8-9 As shown, a sliding groove 506 is provided on the sliding plate 504, a locking member 508 is provided above the sliding groove 506, and a locking member 507 is provided below the sliding groove 506. The locking member 508 and the locking member 507 are connected by threads. When the threads are loose, the locking member 507 can be manually moved to make it slide inside the sliding groove 506.

[0030] When the test fixture needs to be installed, the lower module 100 is placed on the fixed seat 501 of the press 500, and the lower module 100 is connected to the fixed seat 501 through the fixing screw hole 102 provided on the lower module 100. The locking part 507 on the press 500 is adjusted to the corresponding position. The mounting part 600 on the upper module 200 is connected to the locking part 507, and the position of the upper module 200 is fixed by the locking part 508. The connection between the test fixture and the press 500 is thus completed.

[0031] It should be noted that after connecting the test fixture and the press 500, the power is turned on through the power cord 300. According to the test performance required for the product under test, different types of test modules 202 are selected, and the test modules 202 are electrically connected to the test circuit of the upper fixture 201. The test modules 202 are then connected to the computer through the ribbon cable 400. After everything is ready, the product under test is placed in the test station 105, and the press 500 is controlled to close the lower module 100 and the upper module 200. The test results are output through the ribbon cable 400, and the test of the product under test is completed.

[0032] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An automated testing fixture applicable to multiple types of press equipment, characterized in that: It includes a lower module (100) and an upper module (200), which are joined together by a press (500); The lower module (100) is provided with a test station (105), the upper module (200) is provided with a pluggable test module (202), the lower module (100) is connected to a power supply, and the test module (202) is connected to a computer; After the upper module (200) and lower module (100) are molded together, the product to be tested is connected to the test module (202) through a connector.

2. The automated testing fixture applicable to multiple types of press equipment according to claim 1, characterized in that: The bottom of the upper module (200) is provided with a probe male socket (204), and a probe (204-1) is provided on the probe male socket (204). The lower module (100) is provided with a probe socket (107) on its top, and a probe groove (107-5) is provided on the probe socket (107). The probe slot (107-5) is electrically connected to the test station (105).

3. An automated testing fixture applicable to multiple types of press equipment according to claim 2, characterized in that: The probe socket (107) is installed in the telescopic cavity (107-1), and an elastic element (107-2) is provided at the bottom of the probe socket (107).

4. An automated testing fixture applicable to multiple types of press equipment according to claim 3, characterized in that: The top of the telescopic cavity (107-1) is provided with a limiting ring (107-3), and the bottom of the probe female seat (107) is provided with a limiting plate (107-4). The limiting ring (107-3) and the limiting plate (107-4) cooperate with each other to restrict the displacement of the telescopic cavity (107-1) and the probe female seat (107).

5. An automated testing fixture applicable to multiple types of press equipment according to claim 1, characterized in that: The lower module (100) has at least two guide grooves (106) on its top, and the upper module (200) has guide posts (203) at its bottom that match the guide grooves (106).

6. An automated testing fixture applicable to multiple types of press equipment according to any one of claims 1-5, characterized in that: The lower module (100) includes a base (101), a first connecting rod (103), and a lower fixture (104). The base (101) is connected to the lower fixture (104) via a first connecting rod (103), and the base (101) is used to connect to the bottom of the press (500).

7. An automated testing fixture applicable to multiple types of press equipment according to any one of claims 1-5, characterized in that: The upper module (200) includes an upper fixture (201), a second connecting rod (205), and a top plate (206); The upper fixture (201) is connected to the top plate (206) via a second connecting rod (205), and the top plate (206) is used to connect to the top of the press (500).

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