Contact type test tool

Abstract

The utility model discloses a contact type test tool, which relates to the technical field of test equipment and comprises a bottom plate, a test ejector pin is mounted at the top of the bottom plate, a tray wrapping the test ejector pin is further mounted at the top of the bottom plate, a test groove is formed in the tray, and the test ejector pin is arranged in the test groove. A butt joint hole for the test ejector pin to be inserted is formed in the test groove, a test piece is placed in the test groove, a metal terminal aligned with the test ejector pin is arranged at the bottom of the test piece, and a test rotor is further arranged outside the test piece in a sleeving mode. According to the utility model, the test tool is changed from a plug-in probe test to a contact thimble test, during the test, the test piece is installed in the test groove, the metal terminal can be inserted into the butt joint hole in an aligned manner and is contacted with the test thimble, and then the test rotor is sleeved outside the test piece for the test. The convenience and safety of test operation can be improved, and the deflection and damage risks of the metal terminals are reduced.

Description

Technical Field

[0001] This utility model relates to the field of testing equipment technology, and in particular to a contact testing fixture. Background Technology

[0002] With the development of electronic products, the design of test fixtures is also constantly being innovated. In traditional testing methods, the test station uses insertion probes for testing. This method requires manual insertion of the probes into the metal terminals. Since the metal terminal interfaces are small, they are easily damaged due to improper operation. In addition, manual operation can also easily lead to inaccurate alignment, which not only increases the testing time but also the testing cost. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a contact testing fixture, which solves the technical problems mentioned in the background section.

[0004] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a contact testing fixture, including a base plate, a test pin mounted on the top of the base plate, and a tray covering the test pin on the top of the base plate. The tray has a test groove, and the inside of the test groove has a mating hole for inserting the test pin. A test piece is placed inside the test groove. The bottom of the test piece is provided with a metal terminal aligned with the test pin, and a test rotor is sleeved on the outside of the test piece. Fixing mechanisms for fixing the tray are also provided on both sides of the top of the base plate.

[0005] Furthermore, the edge of the tray is fitted with a U-shaped frame, and the base plate is provided with a U-shaped groove that matches the U-shaped frame.

[0006] Furthermore, the fixing mechanism includes two brackets symmetrically installed on the top of the base plate, a rotating shaft is rotatably installed between the two brackets, a pressure plate is fixedly connected at the center of the rotating shaft, and torsion springs are sleeved on both ends of the rotating shaft. The two ends of the torsion springs are respectively fixedly installed on the sides of the brackets and the pressure plate, and a handle is installed on the top of the pressure plate.

[0007] Furthermore, one end of the rotating shaft is fixedly connected to a lever through a bracket, and a limiting component is provided on one of the brackets. The limiting component includes a support rod fixedly installed on the top of the bracket, and a buffer seat is fixedly connected to the upper end of the support rod. A limiting rod is slidably installed inside the buffer seat. A connecting spring is installed between the limiting rod and the inner top wall of the buffer seat, and a pull ring extending to the outside of the buffer seat is installed on one side of the limiting rod.

[0008] Furthermore, the end of the lever is chamfered, and the side of the limiting rod near the lever is sloped.

[0009] Furthermore, a silicone plug is installed inside the test slot to shield the test pin.

[0010] By employing the above technical solution, this utility model provides a contact testing fixture, which has at least the following beneficial effects:

[0011] 1. This utility model replaces the traditional insertion probe test with a contact pin test. During testing, the test piece is simply installed in the test slot, and the metal terminals can be aligned and inserted into the mating hole to contact the test pin. Then, the test rotor is placed on the outside of the test piece for testing. This can improve the convenience and safety of the testing operation and reduce the risk of metal terminal misalignment and damage.

[0012] 2. By setting a fixing mechanism, in conjunction with a spiral frame and a spiral groove, this utility model can enhance the stability of the tray on the base plate. Furthermore, the tray can be removed from the base by controlling the fixing mechanism, making it convenient to replace trays of different specifications. This allows for testing of test pieces of different specifications, thereby improving the practicality of the equipment. Attached Figure Description

[0013] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is one of the schematic diagrams of the base plate and pallet assembly structure of this utility model;

[0016] Figure 3 This is the second schematic diagram of the combined structure of the base plate and the tray of this utility model;

[0017] Figure 4 This is a schematic diagram of the fixing mechanism structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the base plate structure of this utility model;

[0019] Figure 6 This is a schematic diagram of the tray structure of this utility model.

[0020] In the picture:

[0021] 1. Base plate; 101. Test pin; 102. U-shaped groove;

[0022] 2. Tray; 201. Test slot; 202. Butt hole; 203. U-shaped frame;

[0023] 3. Test pieces;

[0024] 4. Test the rotor;

[0025] 5. Fixing mechanism; 51. Bracket; 52. Rotating shaft; 53. Pressure plate; 54. Torsion spring; 55. Handle; 56. Lever; 57. Limiting component; 571. Support rod; 572. Buffer seat; 573. Connecting spring; 574. Limiting rod; 575. Ramp; 576. Pull ring;

[0026] 6. Silicone stopper. Detailed Implementation

[0027] 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.

[0028] In traditional testing methods, the testing station uses an insertion probe for testing. This method requires manual insertion of the probe into the metal terminal. Since the metal terminal interface is small, it is easy to damage the terminal due to improper operation. In addition, manual operation is also prone to inaccurate alignment, which not only increases the testing time but also the testing cost.

[0029] To address the deficiencies that exist in the use of the aforementioned testing equipment, please refer to [link / reference needed]. Figures 1-6 The present invention provides a contact testing fixture, which reduces damage to metal terminals caused by improper human operation and enhances the stability and efficiency of the testing process by changing the existing testing fixture from an insertion probe test to a contact pin test. The testing device uses a base plate 1 as a foundation. A test pin 101 is mounted on the top of the base plate 1, and a tray 2 is also mounted on the top of the base plate 1, covering the test pin 101. A test slot 201 is opened on the tray 2, and a docking hole 202 for inserting the test pin 101 is opened inside the test slot 201. A test piece 3 is placed inside the test slot 201. The bottom of the test piece 3 is provided with a metal terminal aligned with the test pin 101, and a test rotor 4 is also fitted on the outside of the test piece 3. When the tray 2 is installed on the base plate 1, the test pin 101 on the base plate 1 will be inserted into the docking hole 202. During testing, the test piece 3 is simply installed in the test slot 201, and the metal terminal can be aligned and inserted into the docking hole 202 to contact the test pin 101. Then, the test rotor 4 is fitted on the outside of the test piece 3 for testing. This can improve the convenience and safety of the testing operation and reduce the risk of misalignment and damage to the metal terminal.

[0030] In actual testing, it may be necessary to test test pieces 3 of different specifications. When testing test pieces 3 of different specifications, it is necessary to change the tray 2 of different specifications. Therefore, a fixing mechanism 5 for fixing the tray 2 is also provided on both sides of the top of the base plate 1. The fixing mechanism 5 is set as two brackets 51 symmetrically installed on the top of the base plate 1. A rotating shaft 52 is rotatably installed between the two brackets 51. A pressure plate 53 is fixedly connected to the center of the rotating shaft 52, and torsion springs 54 are sleeved on both ends of the rotating shaft 52. The two ends of the torsion springs 54 are respectively fixedly installed on the sides of the brackets 51 and the pressure plate 53. A handle 55 is installed on the top of the pressure plate 53. Figure 2 and Figure 4 As shown, the pressure plate 53 can rotate toward the tray 2 by the torque of the torsion spring 54. The pressure plate 53 presses tightly onto the tray 2 to fix the tray 2. When replacing the tray 2, simply turn the handle 55. Turning the handle 55 makes it easy to drive the pressure plate 53 to rotate. The pressure plate 53 rotates until it is removed from the tray 2, and then the tray 2 can be removed from the base plate 1.

[0031] Because if the pressure plate 53 is released after rotating it upwards, the pressure plate 53 will reverse and reset due to the torque of the torsion spring 54, affecting the subsequent removal of the tray 2, the pressure plate 53 needs to be fixed when it rotates to a certain angle before the tray 2 can be removed. One end of the rotating shaft 52 passes through the bracket 51 and is fixedly connected to the lever 56. One of the brackets 51 is provided with a limiting component 57, which includes a support rod 571 fixedly installed on the top of the bracket 51. The upper end of the support rod 571 is fixedly connected to a buffer seat 572. A limiting rod 574 is slidably installed inside the buffer seat 572. A connecting spring 573 is installed between the limiting rod 574 and the inner top wall of the buffer seat 572. A pull ring 576 extending to the outside of the buffer seat 572 is installed on one side. The end of the lever 56 is chamfered. The limit rod 574 is provided with a ramp 575 on the side near the lever 56. The pressure plate 53 rotates, which drives the rotating shaft 52 to rotate. The rotating shaft 52 rotates, which drives the lever 56 to rotate. The lever 56 rotates and abuts against the ramp 575. As the lever 56 rotates, it can squeeze the limit rod 574 to slide upward. At this time, the connecting spring 573 deforms. When the lever 56 rotates to the other side of the limit rod 574, the limit rod 574 can be reset by the elastic force of the connecting spring 573, blocking the lever 56 and preventing the lever 56 from reversing. This can fix the pressure plate 53 and make it easy to remove the tray 2 from the base plate 1.

[0032] To further enhance the stability of the tray 2 on the base plate 1, a U-shaped frame 203 is installed on the edge of the tray 2, and a U-shaped groove 102 adapted to the U-shaped frame 203 is provided on the base plate 1. The U-shaped frame 203 and the U-shaped groove 102 can limit the tray 2 on the x-axis and y-axis, and together with the fixing mechanism 5, can limit the tray 2 on the z-axis, thereby preventing the tray 2 from shifting and enhancing the stability of the testing process.

[0033] When the equipment is not in use, dust can easily accumulate inside the mating hole 202, which can affect the contact between the test pin 101 and the metal terminal. Therefore, a silicone plug 6 is installed inside the test slot 201 to shield the test pin 101. The silicone plug 6 can seal the mating hole 202 when the equipment is not in use, thus protecting the test pin 101.

[0034] The control method of this utility model is automatic control through a controller. The control circuit of the controller can be implemented by simple programming by those skilled in the art. The power supply is also common knowledge in the field. Since this utility model is mainly used to protect mechanical devices, the control method and circuit connection will not be explained in detail.

[0035] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art 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 appended claims and their equivalents.

Claims

1. A contact testing fixture, comprising a base plate (1), characterized in that: The top of the base plate (1) is equipped with a test pin (101), and the top of the base plate (1) is also equipped with a tray (2) that wraps around the test pin (101). The tray (2) has a test groove (201) and a docking hole (202) for inserting the test pin (101) is provided inside the test groove (201). The test piece (3) is placed inside the test groove (201). The bottom of the test piece (3) is provided with a metal terminal that is aligned with the test pin (101), and a test rotor (4) is also sleeved on the outside of the test piece (3). The top two sides of the base plate (1) are also provided with fixing mechanisms (5) for fixing the tray (2).

2. The contact testing fixture according to claim 1, characterized in that: The edge of the tray (2) is fitted with a spiral frame (203), and the bottom plate (1) is provided with a spiral groove (102) that is adapted to the spiral frame (203).

3. The contact testing fixture according to claim 1, characterized in that: The fixing mechanism (5) includes two brackets (51) symmetrically installed on the top of the base plate (1). A rotating shaft (52) is rotatably installed between the two brackets (51). A pressure plate (53) is fixedly connected to the center of the rotating shaft (52). Torsion springs (54) are sleeved on both ends of the rotating shaft (52). The two ends of the torsion springs (54) are fixedly installed on the sides of the brackets (51) and the pressure plate (53), respectively. A handle (55) is installed on the top of the pressure plate (53).

4. The contact testing fixture according to claim 3, characterized in that: One end of the rotating shaft (52) passes through the bracket (51) and is fixedly connected to a lever (56). One of the brackets (51) is provided with a limiting member (57). The limiting member (57) includes a support rod (571) fixedly installed on the top of the bracket (51). The upper end of the support rod (571) is fixedly connected to a buffer seat (572). A limiting rod (574) is slidably installed inside the buffer seat (572). A connecting spring (573) is installed between the limiting rod (574) and the inner top wall of the buffer seat (572). A pull ring (576) extending to the outside of the buffer seat (572) is installed on one side of the limiting rod (574).

5. The contact testing fixture according to claim 4, characterized in that: The end of the lever (56) is chamfered, and the limiting rod (574) is provided with a ramp (575) on the side near the lever (56).

6. The contact testing fixture according to claim 1, characterized in that: The inside of the test slot (201) is fitted with a silicone plug (6) to cover the test pin (101).

Images