Test fixture assembly for electronic components

Abstract

The utility model relates to tool assembly technical field, concretely to a kind of test tool assembly for electronic component, including locating seat, first sliding head, second sliding head, chuck and piston pipe stem. The both sides of locating seat are respectively set with first sliding sleeve hole and second sliding sleeve hole, and first sliding head and second sliding head are respectively slidably connected in the inside of corresponding sliding sleeve hole;Piston pipe stem is through first sliding head, locating seat and second sliding head, and forms liquid cabin structure in second sliding head, and its inside is slidably installed with piston;The both ends of piston pipe stem are respectively connected with clamping liquid head and reset liquid head, for communicating with external hydraulic or pneumatic drive assembly.The tool assembly is automatically clamped and loosened by piston pipe stem bidirectional drive to realize chuck, and utilize flexible clamping petal structure to buffer protection to electronic component, with the advantages of high clamping precision, controllable driving force, high degree of automation and strong adaptability, suitable for the rapid test and stable fixation of multiple specifications electronic components.

Description

Technical Field

[0001] This utility model relates to the field of tooling components technology, specifically a test tooling component for electronic components. Background Technology

[0002] Currently, functional testing of electronic components generally relies on clamping test fixtures. These fixtures use mechanical structures to fix the electronic components onto a test platform, ensuring stable contact between test probes or electrodes and the tested area. Traditional electronic component test fixtures typically employ manual clamping or one-way threaded clamping structures, such as using a screw to push two clamping blocks for gripping. However, this type of structure has the following problems: First, the clamping mechanism has a single driving force and low adjustment precision. Manual or single-thread transmission mechanisms are difficult to control precisely in terms of clamping stroke and pressure. When testing micro-electronic components, uneven clamping force or excessive clamping often causes component deformation or damage. In addition, the reset speed of traditional mechanical transmission structures is slow, which cannot meet the efficiency requirements of continuous batch testing.

[0003] Secondly, existing chuck structures are too rigid and lack flexible cushioning. Most traditional chucks directly use metal clamping surfaces or hard plastic contact surfaces. In high-frequency or high-precision testing, stress concentration can easily occur due to friction between the clamping surface and the component surface, leading to damage to the electrode ports or encapsulation layers, affecting test accuracy and repeatability.

[0004] Therefore, existing electronic component testing fixtures still have significant shortcomings in terms of clamping accuracy, automated control, and flexible protection. There is an urgent need for a test fixture assembly that is compact, has bidirectional synchronous drive, controllable clamping force, and flexible protection to improve the stability, safety, and universal adaptability of electronic component testing. Utility Model Content

[0005] This invention aims to solve the technical problems existing in the testing fixtures for electronic components, such as low clamping accuracy, asynchronous driving, high structural rigidity, and easy damage to electronic components. It proposes a testing fixture assembly for electronic components that is compact in structure, has controllable clamping force, high degree of automation, and flexible protection.

[0006] This utility model provides a testing fixture assembly for electronic components, including a positioning base, a first slide head, a second slide head, a clamp, and a piston rod. The piston rod, driven hydraulically or pneumatically, enables the synchronous clamping and releasing actions of the two slide heads. A flexible clamping structure is provided in the clamp head to achieve precise fixation and safe protection of electronic components. This solution adopts a modular design, allowing it to adapt to electronic components of different sizes without replacing major components, significantly improving testing efficiency and repeatability.

[0007] In this invention, a first sliding sleeve hole and a second sliding sleeve hole are respectively provided on both sides of the positioning seat. The first sliding head and the second sliding head are slidably sleeved on the inner side of the corresponding sliding sleeve hole, thereby forming a parallel guiding fit structure. The piston rod passes through the first sliding head, the positioning seat, and the second sliding head, and forms a drive system in which a liquid chamber cooperates with the piston within the second sliding head. By controlling the direction of hydraulic or pneumatic medium injection, bidirectional synchronous movement can be achieved, thereby driving the two sliding heads to move closer or further apart, realizing the opening and closing operation of the clamp.

[0008] Specifically, the symmetrical sliding of the dual slide heads and the bidirectional drive of the piston rod ensure the synchronization and stability of the clamping action, significantly improving the positioning accuracy and clamping repeatability of electronic components.

[0009] In a preferred example, the positioning seat is further provided with grooves on both sides, and the bottom ends of the first and second slide heads are provided with sliding feet. The sliding feet are slidably sleeved on the inner side of the grooves to limit the sliding direction and reduce movement deviation.

[0010] Specifically, the cooperation between the slide groove and the sliding foot can prevent the slide head from tilting or wobbling during the clamping process, ensuring smooth sliding and uniform force, thereby extending the service life of the device and maintaining test stability.

[0011] In a preferred example, the surface of the chuck is rotatably mounted with a clip, which is a semi-circular structure made of rubber, to form an elastic fit when clamping electronic components.

[0012] Specifically, the flexible clamping flaps can provide a buffering effect when clamping, effectively preventing damage to the electronic components under test due to hard contact, while ensuring uniform force on the clamping surface and improving the reliability of the test contact.

[0013] In a preferred embodiment, the second slider has a liquid chamber inside, and the piston is slidably fitted inside the liquid chamber. Both ends of the piston are connected to a clamping liquid head and a resetting liquid head, respectively, and the liquid heads are connected to an external hydraulic or pneumatic drive assembly. By controlling the flow direction and pressure of the fluid medium between the two liquid heads, the bidirectional reciprocating motion of the piston is achieved, thereby driving the synchronous clamping and resetting of the two sliders.

[0014] Specifically, the hydraulic drive structure is highly responsive and precise in control, and can achieve different clamping forces by adjusting the medium pressure, thus adapting to the testing needs of electronic components of different specifications.

[0015] In a preferred example, one end of the second slider is provided with a dynamic sealing structure that slides onto the surface of the piston rod, and the reset liquid head and the end of the liquid tank are connected by a threaded seal.

[0016] Specifically, this design effectively prevents media leakage, improves the sealing and reliability of the hydraulic drive system, and ensures smooth and continuous clamping action.

[0017] In a preferred example, the positioning base has a fixing hole at the bottom for mounting on a test bench or fixture base, ensuring overall stability. The top surface of the chuck has mounting screw holes for quick replacement of chuck modules of different sizes.

[0018] Specifically, the device achieves stable overall positioning through mounting via fixed holes, and the modular design enables quick replacement of the chuck, significantly improving the device's versatility and ease of maintenance.

[0019] The beneficial effects achieved by this utility model are as follows: 1. In this utility model, by establishing a bidirectional sliding drive structure between the positioning seat, the first slide head, the second slide head and the piston rod, and by setting a liquid chamber in the second slide head to cooperate with the piston to form a gas-liquid composite drive system, the automatic opening and closing action of the clamp is realized. The clamping force and stroke can be precisely controlled according to the test requirements, thereby improving the clamping stability and repeatability during the testing of electronic components.

[0020] 2. In this utility model, by setting a rotatable flexible clamping structure on the surface of the clamp and using a rubber contact surface for buffer protection, mechanical damage to electronic components during clamping and testing can be effectively avoided, improving the adaptability and safety of the tooling clamping. The overall structure is simple and easy to maintain, making it suitable for rapid testing of electronic components of various specifications. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model; Figure 2 This is a cross-sectional structural diagram of one embodiment of the present invention; Figure 3 This is a schematic diagram of the first and second slider structures according to an embodiment of the present invention; Figure 4 This is a schematic diagram of the first slider and its surface clamp structure according to an embodiment of the present invention; Figure 5 This is a schematic diagram of the piston rod structure according to an embodiment of the present invention.

[0022] Figure label: 1. Positioning seat; 11. Slide groove; 12. First sliding sleeve hole; 13. Second sliding sleeve hole; 2. First sliding head; 3. Second sliding head; 31. Liquid tank; 32. Reset liquid head; 4. Clamp; 41. Clamping flap; 5. Piston rod; 51. Piston; 52. Liquid hole; 53. Clamping liquid head. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0024] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0025] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a test fixture assembly for electronic components.

[0026] Combination Figures 1-5 As shown, the present invention provides a test fixture assembly for electronic components, including a positioning seat 1, a first slide head 2, a second slide head 3, a clamp 4, and a piston rod 5.

[0027] The positioning base 1 is an integrally formed structure, with a first sliding sleeve hole 12 and a second sliding sleeve hole 13 on its two sides, respectively, for accommodating the first sliding head 2 and the second sliding head 3 for sliding engagement. The first sliding head 2 and the second sliding head 3 are arranged opposite to each other for clamping and releasing the electronic components on both sides during testing.

[0028] The piston rod 5 passes through the first slide head 2, the positioning seat 1, and the second slide head 3. One end of the piston rod 5 is fixedly connected to the piston 51 located inside the liquid chamber 31 of the second slide head 3, and is used to generate reciprocating motion under the action of medium pressure. A liquid hole 52 is formed on the surface of the piston rod 5, which communicates with the liquid chamber 31, allowing the driving medium to form a balanced pressure on both sides of the piston 51. One end of the piston rod 5 is fixedly connected to the clamping liquid head 53, and the other end is connected to the reset liquid head 32 on the second slide head 3, forming clamping and reset drive circuits respectively.

[0029] In this embodiment, the positioning seat 1 is also provided with sliding grooves 11 on both sides, and the bottom ends of the first sliding head 2 and the second sliding head 3 are respectively provided with sliding foot structures. The sliding feet are slidably sleeved on the inner side of the sliding groove 11 to realize the linear guiding movement of the sliding head in the horizontal direction, thereby improving the clamping accuracy and repeatability positioning accuracy.

[0030] The chuck 4 is fixedly installed on the top surface of the first slide head 2 and the second slide head 3 for direct contact with electronic components. A clamping flap 41 is rotatably mounted on the surface of the chuck 4. The clamping flap 41 has a semi-circular structure and is made of flexible rubber material, which can effectively prevent damage to electronic components caused by hard contact when clamping them.

[0031] The second slider 3 has a liquid chamber 31 inside, and a piston 51 is slidably sleeved inside the liquid chamber 31 to form a pneumatic or hydraulic sealed cavity. When the clamping liquid head 53 and the reset liquid head 32 are respectively connected to the hydraulic drive assembly or the pneumatic drive assembly, the piston 51 can be driven to move the first slider 2 and the second slider 3 closer or further apart by controlling the injection direction and pressure of the medium, thereby realizing the clamping and releasing operation.

[0032] In this embodiment, a dynamic sealing structure is provided between one end of the second sliding head 3 and the piston rod 5 to prevent media leakage. The reset liquid head 32 is connected to one end of the liquid tank 31 by a threaded seal, which facilitates maintenance and replacement.

[0033] Furthermore, the bottom of the positioning seat 1 is provided with multiple fixing holes, which can securely install the component on the test table or fixture base to ensure structural stability during the test.

[0034] In a preferred example, the top surface of the chuck 4 is also provided with a mounting screw hole structure to enable quick replacement of the chuck module to accommodate electronic components of different specifications, sizes or shapes, thereby improving clamping versatility and operational efficiency.

[0035] This invention features a simple overall structure, high sliding precision, and easy replacement of the chuck module, effectively improving the clamping stability and testing efficiency of electronic components.

[0036] The working principle of the electronic component testing fixture assembly of this utility model is as follows: In the initial state, the piston rod 5 is in the neutral position, the first slider 2 and the second slider 3 maintain a preset distance, and the clamping discs 41 of the chuck 4 are in the open state. The operator places the electronic component to be tested in the test area between the two clamps.

[0037] When the drive system starts working, the hydraulic drive assembly or pneumatic drive assembly injects pressurized medium into the clamping head 53. The medium enters the liquid chamber 31 through the liquid hole 52, pushing the piston 51 to move towards the reset head 32. The movement of the piston 51 causes the second slide head 3 to move towards the first slide head 2, while the first slide head 2 slides synchronously in the slide groove 11, thereby bringing the two clamps 4 closer together and achieving stable clamping of electronic components.

[0038] After the electronic components are tested, the control system switches the direction of the medium, so that the working medium is injected into the other side of the liquid tank 31 through the reset liquid head 32, pushing the piston 51 to move in the opposite direction, thereby causing the second slider 3 to move away from the first slider 2, realizing the automatic release of the clamp 4, and the electronic components can be taken out.

[0039] The entire testing process utilizes bidirectional drive to automatically switch between clamping and releasing, ensuring smooth and repeatable operation. The flexible design of the clamping flap 41 provides a buffering effect during clamping, preventing damage caused by uneven force on the components, while also improving contact stability and electrical testing reliability.

[0040] This tooling assembly can adjust the hydraulic or pneumatic pressure according to testing requirements to achieve different clamping force control; at the same time, the maximum stroke can be limited by adjusting the position of the limit nut to prevent over-clamping and damage to the equipment.

[0041] In summary, this utility model achieves rapid clamping and safe testing of electronic components through piston rod drive, dual slide head linkage, and flexible chuck module. It has the advantages of compact structure, strong adaptability, stable clamping, and high degree of automation.

[0042] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A test fixture assembly for electronic components, characterized in that, The system includes a positioning seat (1), a first sliding head (2), a second sliding head (3), a clamp (4), and a piston rod (5). The positioning seat (1) has a first sliding sleeve hole (12) and a second sliding sleeve hole (13) on both sides. The first sliding head (2) and the second sliding head (3) are slidably sleeved on the inner side of the first sliding sleeve hole (12) and the second sliding sleeve hole (13), respectively. One end of the piston rod (5) passes through the first sliding head (2), the positioning seat (1), and the second sliding head (3), and is connected to a piston (51) located inside the liquid tank (31) of the second sliding head (3). The surface of the piston rod (5) has a liquid hole (52). One end of the piston rod (5) and one end of the second sliding head (3) are respectively connected to a clamping liquid head (53) and a resetting liquid head (32). The clamp (4) is fixedly installed on the top surface of the first sliding head (2) and the second sliding head (3).

2. The test fixture assembly for electronic components according to claim 1, characterized in that, The positioning seat (1) is provided with sliding grooves (11) on both sides. The bottom ends of the first sliding head (2) and the second sliding head (3) are provided with sliding feet, and the sliding feet are slidably sleeved on the inner side of the sliding groove (11).

3. The test fixture assembly for electronic components according to claim 1, characterized in that, The clamp (4) has a rotatable clamping flap (41) mounted on its surface. The clamping flap (41) is a semi-circular structure and is made of rubber.

4. The test fixture assembly for electronic components according to claim 1, characterized in that, The second slider (3) has a liquid chamber (31) on its inner side, and the piston (51) is slidably sleeved on the inner side of the liquid chamber (31).

5. The test fixture assembly for electronic components according to claim 1, characterized in that, The ends of the clamping liquid head (53) and the reset liquid head (32) are respectively connected to a hydraulic drive assembly or a pneumatic drive assembly, and are respectively used to inject working medium into both sides of the piston (51) inside the liquid tank (31).

6. The test fixture assembly for electronic components according to claim 1, characterized in that, The second slider (3) has a dynamic sealing structure that is slidably sleeved on the surface of the piston rod (5) at one end, and the reset liquid head (32) is connected to one end of the liquid tank (31) by a threaded seal.

7. The test fixture assembly for electronic components according to claim 1, characterized in that, The positioning seat (1) has a fixing hole at its bottom.

8. The test fixture assembly for electronic components according to claim 1, characterized in that, The top surface of the chuck (4) is provided with mounting screw holes for quick replacement.

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