Electrical testing device

Abstract

An electrical testing device comprises a rack, a conductive system installed at the front end of the rack and a testing system installed at the rear end of the rack, the testing system sequentially comprises a testing table and a base from front to back, the testing table is used for placing a product to be tested, and the base is sequentially provided with a toggle assembly and an electrical testing probe propelling air cylinder from front to back. The testing head is arranged on the testing table in a turnover mode through the toggle assembly, the electric testing probe pushing air cylinder and the testing head are connected through the toggle assembly to drive the testing head to turn over, a product to be tested can be firmly fixed to the testing table through the structure, the stability and reliability of testing are guaranteed, the equipment cost is reduced, and the testing efficiency is improved. And the working efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical measurement, in particular to an electrical measurement device. Background Art

[0002] There are many types of connectors. The pins of existing electrical connectors are large in number and densely packed. When plugging the electrical connector of an external device into the electrical connector of a main device, it is difficult for the user to determine whether each pin of the electrical connector of the external device is in good contact with each pin of the electrical connector of the main device. When the pins of the electrical connector of the external device are in poor contact or incorrect contact with the pins of the electrical connector of the main device, energizing the electrical connector of the main device may have adverse effects on the internal circuits of the main device system or external devices. Therefore, current manufacturers use electrical testing devices to test connectors.

[0003] Existing electrical testing devices, for example, Chinese utility model CN218902758U discloses an automatic electrical testing device for a connector, which uses an electrical testing probe to propel a cylinder to drive an electrical testing probe to quickly and reliably contact the connector pins, and uses an electrical testing male plug to propel a cylinder to drive an electrical testing male plug, so that the male plug can be reliably inserted into the connector, thereby achieving a reliable connection between the male plug and the connector. However, this electrical testing device also requires an additional conveyor belt to fix the connector for testing in order to achieve automatic electrical testing of the connector. Utility Model Content

[0004] In order to overcome the shortcomings and deficiencies in the prior art, the purpose of the present invention is to design an electrical testing device. The test head of the test system can firmly fix the product to be tested on the test bench by connecting a toggle assembly, which not only ensures the stability and reliability of the test, but also reduces the equipment cost and greatly improves work efficiency.

[0005] To achieve the above-mentioned objectives, the present invention provides an electrical testing device, comprising a frame, a conductive system installed at the front end of the frame, and a test system installed at the rear end of the frame. The test system comprises, from front to back, a test bench and a base. The test bench is used to place the product to be tested. The base is provided with a toggle assembly and an electrical testing probe propulsion cylinder from front to back. The test head is flippably arranged on the test bench through the toggle assembly. The electrical testing probe propulsion cylinder and the test head are connected through the toggle assembly to drive the test head to flip.

[0006] Furthermore, the conductive system is arranged in sequence from front to back: an electric measuring male head propulsion cylinder, a sliding assembly, an electric measuring male head fixing seat with a cable and an electric measuring male head. The electric measuring male head propulsion cylinder is connected to the front end of the sliding assembly, and a positioning groove is provided at the rear end of the electric measuring male head fixing seat. The electric measuring male head is welded in the positioning groove and the terminal of the electric measuring male head is connected to the cable of the electric measuring male head fixing seat. The electric measuring male head fixing seat is arranged on the sliding assembly and slides in the front and rear directions driven by the sliding assembly.

[0007] Furthermore, the sliding assembly includes: a sliding rail and a slider arranged on the sliding rail, the slider is fixedly connected to the electric measuring male head fixing seat, the frame is provided with a groove, the sliding rail is fixedly installed in the groove, and sliding grooves are provided on the front and rear sides of the sliding rail, and the slider is provided with a protrusion. Through the close fit between the sliding groove and the protrusion, the slider can drive the electric measuring male head to move back and forth on the sliding rail.

[0008] Furthermore, the test head includes: an electrical probe fixing seat and several probes, the electrical probe fixing seat is provided with several probe holes, the several probes pass through the several probe holes and are fixed on the electrical probe fixing seat, and the lower ends of the several probes are all located below the electrical probe fixing seat.

[0009] Furthermore, the toggle assembly includes: a first connecting rod, a second connecting rod and a rocker arm, the electric probe propulsion cylinder is fixedly connected to the rear end of the first connecting rod, the first connecting rod, the second connecting rod, the rocker arm and the electric probe fixing seat are coaxially connected in sequence from back to front, and the rocker arm is coaxially connected to the base, the base is provided with a mounting groove, and the lower end of the rocker arm is provided in the mounting groove and can swing back and forth.

[0010] Furthermore, the electrical measuring device also includes a pad and a support plate respectively arranged on the frame, the sliding assembly is arranged between the pad and the support plate, the electrical measuring male head propulsion cylinder is arranged on the pad, and the test bench and the base are fixed on the support plate.

[0011] Furthermore, the electrical measuring device further includes a limit block provided on the workbench, wherein the limit block is provided between the sliding track and the support plate.

[0012] Furthermore, the front end of the base is in close contact with the test bench, and a U-shaped guide groove is provided at the front end of the base. When the test head presses against the product to be tested, at least a part of the electrical test probe fixing seat is in the guide groove.

[0013] After adopting the above technical solution, the beneficial effects are:

[0014] The electric test male connector is pushed into contact with the product under test by the air cylinder through the sliding assembly. The electric test probe pushes the test head firmly against the product under test and contacts the pins of the product under test through the toggle assembly. The electric test machine signal is transmitted and received through the electric test male connector, which can realize the test conduction and high voltage test functions at the same time and can firmly fix the product under test on the test bench, which not only ensures the stability and reliability of the test, but also reduces the equipment cost and greatly improves the work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic structural diagram of the electrical measuring device involved in the present utility model;

[0016] Figure 2 It is a top view of the electric measuring device involved in the utility model;

[0017] Figure 3 This is a right side view of the electrical measuring device involved in the present utility model;

[0018] Figure 4 This is a schematic structural diagram of a sliding assembly of an electrical measuring device according to the present invention;

[0019] Figure 5 This is a schematic structural diagram of a toggle assembly of an electric measuring device involved in the present utility model;

[0020] Figure 6 This is a cross-sectional view of a toggle assembly of the electric measuring device involved in the present utility model;

[0021] Figure 7 This is a schematic diagram of the base structure of the electric measuring device involved in the present utility model;

[0022] Figure 8 This is a schematic structural diagram of an electric measuring probe fixing seat of an electric measuring device involved in the present utility model;

[0023] The accompanying drawings are marked as follows: 1. frame; 2. conductive system; 3. test system; 4. spacer; 5. support plate; 6. limit block; 21. electric test male head propulsion cylinder; 22. sliding assembly; 23. electric test male head; 24. electric test male head fixing seat; 25. positioning groove; 221. sliding track; 222. slider; a. groove; b. sliding groove; c. protrusion; d. guide groove; e. mounting groove; 31. test bench; 32. base; 33. test head; 34. toggle assembly; 35. electric test probe propulsion cylinder; 331. electric test probe fixing seat; 332. probe; 333. probe hole; 341. first connecting rod; 342. second connecting rod; 343. swing rod; DETAILED DESCRIPTION

[0024] The following further describes the technical solution of the present invention through examples. Obviously, the described examples are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0025] like Figure 1-3 As shown, the present invention provides an electrical testing device, comprising a frame 1, a conductive system 2 mounted at the front end of the frame, and a test system 3 mounted at the rear end of the frame 1. The test system 3 comprises, from front to back, a test table 31 and a base 32. The test table 31 is used to place the product to be tested. The base 32 is provided with a toggle assembly 34 and an electrical test probe propulsion cylinder 35 from front to back. A test head 33 is reversibly mounted on the test table 31 via the toggle assembly 34. The electrical test probe propulsion cylinder 35 is connected to the test head 33 via the toggle assembly 34 to drive the test head 33 to flip. The test head 33 is flipped downward to press the product to be tested on the test table 31, and is flipped upward to release the product to be tested on the test table 31. This design simultaneously achieves a pressing contact between the product to be tested and the test head. Using only one cylinder not only reduces equipment development costs but also increases single-operation time by 0.2 seconds per time.

[0026] Furthermore, the conductive system 2 is arranged in order from front to back: an electric test male head propulsion cylinder 21, a sliding assembly 22, an electric test male head fixing seat 24 with a cable, and an electric test male head 23, as shown in FIG. Figure 8 As shown, a positioning groove 25 is provided at the rear end of the electrical testing male head fixing seat 24, the electrical testing male head 23 is welded in the positioning groove 25 and the terminal of the electrical testing male head 23 is connected to the cable of the electrical testing male head fixing seat 24, the electrical testing male head fixing seat 24 is provided on the sliding assembly 22 and slides along the front and rear directions and slides backward under the drive of the sliding assembly 22 to contact and connect with the product to be tested, the sliding assembly 22 includes: a sliding rail 221 and a slider 222 slidably set on the sliding rail 211, the slider 222 is fixedly connected to the electrical testing male head fixing seat 24, the frame 1 is provided with a groove a, the sliding rail 221 is fixedly installed in the groove a, and sliding grooves b are provided on the left and right sides of the sliding rail 221, and a protrusion c is provided on the slider 222. Through the close cooperation of the sliding groove b and the protrusion c, the slider 222 can drive the electrical testing male head 23 to slide along the front and rear directions on the sliding rail 221.

[0027] like Figure 5As shown, the test head 33 includes: an electrical test probe holder 331 and a plurality of probes 332. The electrical test probe holder 331 is provided with a plurality of probe holes 333. The plurality of probes 332 pass through the plurality of probe holes 333 and are fixed to the electrical test probe holder 331. The lower ends of the plurality of probes 332 are all located below the electrical test probe holder 331, so that the lower ends of the probes 332 can press and contact the pins of the product to be tested. The distance between the plurality of probe holes 333 matches the pin spacing of the product to be tested.

[0028] like Figure 5-7 As shown, the toggle assembly 34 includes: a first connecting rod 341, a second connecting rod 342 and a rocker arm 343. The electric probe propulsion cylinder 35 is fixedly connected to the rear end of the first connecting rod 341. The first connecting rod 341, the second connecting rod 342, the rocker arm 343 and the electric probe fixing seat 331 are coaxially connected in sequence from back to front, and the rocker arm 343 is coaxially connected to the base 32. The base 32 is provided with a mounting groove e. The lower end of the rocker arm 343 is installed in the mounting groove e and can swing back and forth. That is to say, when the electric probe propulsion cylinder 35 is pushed forward, it drives the first connecting rod 341 and the second connecting rod 342 forward, and the rocker arm 343 swings forward around the bottom concentric axis, causing the electric probe fixing seat 331 to flip downward and press into contact with the product to be tested.

[0029] like Figure 3 As shown, the electrical testing device also includes a pad 4 and a support plate 5 respectively installed at the front and rear ends of the frame 1, the sliding assembly 22 is arranged between the pad 4 and the support plate 5, the electrical testing male head propulsion cylinder 21 is arranged on the pad 4, and the test table 31 and the base 32 are fixedly installed on the support plate 5. By arranging the pad 4 and the support plate 5, the electrical testing male head 23 and the product to be tested on the test table 31 can be in the same horizontal plane for testing, wherein the height of the pad 4 and the support plate 5 can be adjusted and selected according to the height of the electrical testing device in the test state.

[0030] The electrical testing device also includes a limit block 6 installed on the frame 1. The limit block 6 is arranged between the sliding rail 221 and the support plate 5. When the electrical testing male head propulsion cylinder 21 pushes the electrical testing male head 23 to move toward the rear end to contact and connect with the product to be tested, the limit block 6 abuts against the slider 222, so that the limit block 6 prevents the slider 222 from driving the electrical testing male head 23 to continue moving toward the rear end, thereby avoiding damage to the product to be tested.

[0031] like Figure 7 As shown, the front end of the base 32 is tightly attached to the test table 31, and a U-shaped guide groove d is provided at the front end of the base 32. When the test head 33 is pressed against the product to be tested, at least a portion of the electrical test probe fixing seat 24 is within the guide groove d to limit the left and right position of the test head 33, and the lower end of the probe 332 can just press and contact with the pin of the product to be tested.

[0032] When the electrical testing device enters the electrical testing state, the electrical testing probe advancing cylinder 35 allows the test head 33 to firmly press the product under test through the toggle assembly 34 and contact the pins of the product under test. The electrical testing male head advancing cylinder 21 pushes the electrical testing male head 23 to move to the rear end through the sliding assembly 22 to contact and connect with the product under test on the test bench 31. The electrical testing machine signal is transmitted and received through the electrical testing male head 23 to perform conductivity and high-voltage tests on the product under test. When the electrical testing device is in the reset state, the electrical testing male head advancing cylinder 21 pulls the sliding assembly 22 to drive the electrical testing male head 23 to move to the front end, so that the electrical testing male head 23 is separated from the contact with the product under test on the test bench 31. The electrical testing probe advancing cylinder 35 moves to the rear end by pulling the toggle assembly 34, thereby driving the test head 33 to flip downward and fall onto the base 32, so that the test head 33 is separated from the pressing contact with the product under test. That is to say, the electric test probe propulsion cylinder 35 of this embodiment allows the test head 33 to firmly press the product to be tested and contact the pins of the product to be tested through the toggle assembly 34. After the conductive system is connected, the test conduction function and the function of fixing the product to be tested can be realized simultaneously, which not only ensures the stability and reliability of the test, but also reduces the equipment cost and greatly improves the work efficiency.

[0033] In this embodiment, the rack 1 is provided with four sets of the above-mentioned electrical testing devices. However, in other embodiments, it is not limited to only four sets of the above-mentioned electrical testing devices.

[0034] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications are also considered to be within the scope of protection of the present invention.

Claims

1. An electrical measuring device comprising a rack, a conductive system installed at the front end of the rack, and a test system installed at the rear end of the rack, characterized in that: The test system includes, from front to back, a test head, a test bench for placing the product to be tested, and a base. The base is provided with a toggle assembly and an electric test probe propulsion cylinder from front to back. The test head is flippably set on the test bench via the toggle assembly. The electric test probe propulsion cylinder is connected to the test head via the toggle assembly to drive the test head to flip.

2. An electrical measuring device according to claim 1, characterized in that: The conductive system is arranged in sequence from front to back: an electric measuring male head propulsion cylinder, a sliding assembly, an electric measuring male head fixing seat with a cable, and an electric measuring male head. The electric measuring male head propulsion cylinder is connected to the front end of the sliding assembly, and a positioning groove is provided at the rear end of the electric measuring male head fixing seat. The electric measuring male head is fixed in the positioning groove and the terminals of the electric measuring male head are connected to the cable of the electric measuring male head fixing seat. The electric measuring male head fixing seat is provided on the sliding assembly and slides in the front and rear directions driven by the sliding assembly.

3. An electrical measuring device according to claim 2, characterized in that: The sliding assembly comprises a sliding rail and a slider arranged on the sliding rail, the slider is fixedly connected to the electrical test male head fixing seat, and the sliding rail is fixed to the frame.

4. An electrical measuring device according to claim 1, characterized in that: The test head includes an electrical probe fixing seat and a plurality of probes. The electrical probe fixing seat is provided with a plurality of probe holes. The probes are fixed on the electrical probe fixing seat. The lower ends of the plurality of probes are all located below the electrical probe fixing seat.

5. An electrical measuring device according to claim 4, characterized in that: The toggle assembly includes: a first connecting rod, a second connecting rod and a rocker arm. The electric probe propulsion cylinder is fixedly connected to the rear end of the first connecting rod. The first connecting rod, the second connecting rod, the rocker arm and the electric probe fixing seat are coaxially connected in sequence from back to front. The rocker arm is coaxially connected to the base.

6. An electrical measuring device according to claim 3, characterized in that: The electrical testing device also includes a pad and a support plate respectively arranged on the frame, the sliding assembly is arranged between the pad and the support plate, the electrical testing male head propulsion cylinder is arranged on the pad, and the test bench and the base are fixed on the support plate.

7. An electrical measuring device according to claim 6, characterized in that: It also includes a limit block arranged on the workbench, and the limit block is arranged between the sliding track and the support plate.

8. An electrical measuring device according to claim 4, characterized in that: The front end of the base is in close contact with the test bench. A U-shaped guide groove is provided at the front end of the base. When the test head presses against the product to be tested, at least a portion of the electrical test probe fixing seat is in the guide groove.

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