PLC (Programmable Logic Controller) high-voltage-resistant test equipment

Abstract

The utility model discloses a PLC high voltage resistance test device, which comprises a test box, a VPC connector, a voltage resistance instrument, a laminate, a first sliding table, an optical axis guide rail, a profiling limiting seat, a main connector and an auxiliary connector, and is characterized in that the test box is electrically connected with the voltage resistance instrument through the VPC connector, the laminate is arranged in the test box, and the optical axis guide rail for bearing the first sliding table is erected on the test box; the first sliding table is provided with a profiling limiting base, the two sides of the profiling limiting base are in butt joint with a main connector and an auxiliary connector respectively in the linear diameter direction of the optical axis guide rail, and the main connector and the auxiliary connector are electrically connected with the VPC connector respectively. Through the above mode, the utility model provides the PLC high-voltage-resistant test equipment which is used for realizing linkage electric connection of a voltage-resistant test bidirectional interface, a main connector and an auxiliary connector can be loaded in a linkage manner through one-time shifting of the rotating lever, and the main connector realizes reliable crimping and rapid unloading of a circuit through crimping operation of the pressing pulley. And the withstand voltage test process can be safely, reliably and efficiently implemented.

Description

Technical Field

[0001] The utility model relates to the field of voltage resistance testing, in particular to a PLC high voltage resistance testing device. Background Art

[0002] Before the high-voltage resistance test, the high-voltage interfaces of the tested equipment need to be manually electrically connected and connected. In response to the testing requirements of products of different specifications, the existing technology requires the overall replacement of high-voltage wiring harnesses and connectors, which is not conducive to the effective control of testing costs. In response to the batch testing requirements of products of the same specifications, the existing technology requires the distribution of all interfaces. The test preparation process is time-consuming and difficult to adapt to the needs of large-scale batch testing. Utility Model Content

[0003] The main technical problem solved by the utility model is to provide a PLC high-voltage test device for realizing the linkage electrical connection of the two-way interface of the voltage test. The main connector can be linked to load the auxiliary connector by a single toggle of the rotating lever. The main connector can realize reliable crimping and rapid unloading of the circuit through the crimping operation of the pressing pulley, so that the voltage test process can be implemented safely, reliably and efficiently.

[0004] In order to solve the above technical problems, a technical solution adopted by the utility model is: to provide a PLC high-voltage test equipment, including a test box, a VPC connector, a voltage tester, a layer plate, a first slide, an optical axis guide rail, a contour limit seat, a main connector, and a secondary connector. The test box is electrically connected to the voltage tester via the VPC connector. The test box has a built-in layer plate and is provided with an optical axis guide rail that supports the first slide. The first slide is provided with a contour limit seat. The main connector and the secondary connector are respectively connected to the contour limit seat on both sides along the optical axis guide line diameter direction. The main connector and the secondary connector are respectively electrically connected to the VPC connector.

[0005] In a preferred embodiment of the present invention, the optical axis guide rail also carries a second slide, and the auxiliary connector is arranged on the second slide.

[0006] In a preferred embodiment of the utility model, a pin row electrically connected to the VPC connector is suspended on the bottom surface of the layer board, the layer board is opened directly above the pin row and a main connector is placed thereon, and interface pins electrically connected to the pin row are arranged at the bottom of the main connector; the top surfaces of the main connector and the auxiliary connector are provided with Z-axis guide baffles.

[0007] In a preferred embodiment of the utility model, the needle row is composed of a carrier plate hoisted at the bottom of the layer plate and a large number of probes vertically connected to the carrier plate, guide holes are set at both ends of the carrier plate, and guide columns corresponding to the guide holes are set at the bottom of the main connector.

[0008] In a preferred embodiment of the utility model, the needle row is provided with an elastic retractable probe, the layer plate is provided with a pair of shaft seats on both sides of the main connector, the shaft seats are connected to a pair of rocker arms, and a downward pressure pulley is installed on the rocker arms.

[0009] In a preferred embodiment of the utility model, pressure blocks are arranged on both sides of the main connector, and the pressure blocks are provided with pressure-bearing surfaces matching the shape of the pressure pulley, and the pressure-bearing surfaces are arranged correspondingly on the path of the pressure pulley flipping around the shaft seat.

[0010] In a preferred embodiment of the utility model, the shaft seat is equipped with positioning brackets disposed on the upper and lower surfaces of the layer plate, a knob plunger is installed on the positioning bracket, and a clamping hole matching the knob plunger is provided on the rocker arm.

[0011] In a preferred embodiment of the utility model, a first quick-change plate is provided on the first slide, the contoured limit seat is provided on the first quick-change plate, quick-change handles are provided on both sides of the first quick-change plate, and a quick-change lock buckle for locking the first slide is provided on the edge of the first quick-change plate.

[0012] In a preferred embodiment of the utility model, a second quick-change plate is provided on the second slide, the auxiliary connector is provided on the second quick-change plate, quick-change handles are provided on both sides of the second quick-change plate, and a quick-change lock is provided on the edge of the second quick-change plate for locking the second slide.

[0013] In a preferred embodiment of the utility model, a wire hole is provided on the second slide, a Z-shaped rotating lever is provided on the layer plate, a handle is provided on one end of the rotating lever, and a toggle pulley is provided on the other end, the toggle pulley is inserted into the wire hole, and the rotating lever can push the first slide and the second slide onto the main connector within a radius; the main connector is provided with a primary spring ejector for pushing the first slide open; a first impact block is provided at the bottom of the first slide, and a second impact block is provided at the bottom of the second slide, the first impact block is provided with a secondary spring ejector for pushing the second slide open, and the secondary spring ejector matches and contacts the second impact block.

[0014] The beneficial effect of the utility model is that the utility model provides a PLC high-voltage test device, which is used to realize the linkage electrical connection of the two-way interface of the voltage test. The main and auxiliary connectors can be loaded in a linkage manner by toggling the rotating lever once. The main connector realizes reliable crimping and rapid unloading of the circuit through the crimping operation of the pressing pulley, so that the voltage test process can be implemented safely, reliably and efficiently. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative work, among which:

[0016] Figure 1 This is the overall structure diagram of a PLC high voltage resistance test device of the utility model;

[0017] Figure 2 This is a test box structure diagram of a PLC high voltage resistance test device of the utility model;

[0018] Figure 3 This is a structure diagram of the optical axis guide rail of a PLC high voltage test equipment of the utility model.

[0019] Figure 4 This is the main structure diagram of a PLC high voltage resistance test device of the utility model;

[0020] Figure 5 This is a structural diagram of a contoured limit seat of a PLC high-voltage test device of the utility model;

[0021] Figure 6 This is a pin row structure diagram of a PLC high voltage resistance test device of the utility model;

[0022] Figure 7 This is a back structural diagram of a main connector of a PLC high voltage resistance test device of the utility model;

[0023] Figure 8 The utility model discloses a rotating lever structure diagram of a PLC high voltage resistance testing device. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part 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 creative work are within the scope of protection of the present invention.

[0025] like Figure 1-8 As shown, the embodiment of the utility model includes:

[0026] A PLC high-voltage test device comprises a test box 1, a VPC connector 2, a withstand voltage instrument 3, a layer plate 4, a first slide 5, an optical axis guide rail 6, a contour limit seat 7, a main connector 8, and a secondary connector 9. The test box 1 is electrically connected to the withstand voltage instrument 3 via the VPC connector 2. The test box 1 has a built-in layer plate 4 and is provided with an optical axis guide rail 6 that supports the first slide 5. The optical axis guide rail 6 can be installed on the upper surface or the lower surface of the layer plate 4. However, in order to optimize the spatial structure, in this embodiment, the optical axis guide rail 6 is installed on the bottom surface of the layer plate 4. The layer plate 4 is opened between the optical axis guide rails 6 to allow the linear bearing slider and other related components on the optical axis guide rail 6 to be displaced. The first slide 5 is provided with a contour limit seat 7, and the contour limit seat 7 is composed of a plurality of contour positioning blocks. The contoured positioning block surrounds and forms a limit space for placing the product under test. In order to achieve connection with the product under test, the main connector 8 and the auxiliary connector 9 will invade the limit space as needed to achieve electrical connection. The main connector 8 and the auxiliary connector 9 are respectively connected to the main connector 8 and the auxiliary connector 9 along the wire diameter direction of the optical axis guide rail 6 on both sides of the contoured limit seat 7. The main connector 8 and the auxiliary connector 9 are both used to establish electrical connection with the product under test, and then implement high-voltage resistance test. The main connector 8 and the auxiliary connector 9 are respectively electrically connected to the VPC connector 2. The VPC connector 2 is located on the back of the test box 1 and below the layer 4. The high-voltage wiring harness is laid in the test box 1 and at the bottom of the layer 4. The VPC connector 2 introduces the wiring harness of the withstand voltage instrument 3 into the test box 1, and is electrically connected to the main 8 and the auxiliary connector 9 through the high-voltage wiring harness. During operation, the product under test must be placed on the contoured limit seat 7. When the power is off (the on and off operation of the electrical connection will be introduced below, involving a rotating lever and a pressing pulley), the first slide 5 can be pushed manually. Based on the current implementation, the first slide 5 can be pushed toward the main connector 8 or the auxiliary connector 9. The implementation method of simultaneously connecting the main connector 8 and the auxiliary connector 9 will also be introduced below.

[0027] Furthermore, the optical axis guide rail 6 also carries a second slide 10, and the auxiliary connector 9 is arranged on the second slide 10. Based on the above method, the second slide 10 can be pushed toward the first slide 5 by manual operation, so that the auxiliary connector 9 establishes an electrical connection with the product under test. In the process of pushing the slide, the first slide 5 and the second slide 10 slide in conjunction, so that the product under test is further plugged into the main connector 8, that is, the purpose of connecting the product under test to the main connector 8 and the auxiliary connector 9 at the same time is achieved, which solves the problem of the need to switch the main and auxiliary connectors 9 back and forth in the above-mentioned implementation.

[0028] Furthermore, a pin row 11 electrically connected to the VPC connector 2 is suspended on the bottom of the layer board 4. The layer board 4 is opened just above the pin row 11 and a main connector 8 is placed thereon. In this way, the circuit of the connector can be introduced into the bottom of the layer board 4, which is convenient for access to the VPC connector 2, and plays a key role in optimizing the spatial structure. An interface pin 12 electrically connected to the pin row 11 is arranged at the bottom of the main connector 8. The interface pin 12 has a pancake-shaped contact. The interface pin 12 will fall on the pin row 11, and the probe on the pin row 11 will be connected to the pancake-shaped contact of the interface pin 12. The top surfaces of the main connector 8 and the auxiliary connector 9 are provided with a Z-axis guide baffle 13. Figure 4 As shown, the electrical connection between the PIN pin of the tested product and the main connector 8 and the auxiliary connector 9 requires a high alignment accuracy. On the basis of the xy-axis guiding limit provided by the contoured limit seat 7, the three-axis alignment is further realized by setting the Z-axis guiding baffle 13. The Z-axis guiding baffle 13 is tilted in the direction of the tested product, and a wide opening is constructed below it to achieve the correction effect. The tested product is guided in the z-axis direction, and the Z-axis guiding baffle 13 only works during the plug-in process of the tested product.

[0029] Furthermore, the needle row 11 is composed of a carrier plate 14 hoisted at the bottom of the layer plate 4 and a large number of probes 15 vertically connected to the carrier plate 14. In order to achieve accurate alignment of the interface needles 12 and the probes 15 on the needle row 11, guide holes 16 are provided at both ends of the carrier plate 14, and guide columns 17 corresponding to the guide holes 16 are provided at the bottom of the main connector 8. In this way, the interface needles 12 at the bottom of the main connector 8 do not need to be modified when the tested product is changed, that is, when other tested products are changed, it is only necessary to redesign the plug of the main connector 8 connected to the tested product, and there is no need to adjust the interface needles 12 at the bottom of the main connector 8, thereby realizing the quick-change function, and the interface needles 12 can quickly realize the positioning of the electrical connection through the matching docking of the guide columns 17 and the guide holes 16.

[0030] Furthermore, the needle row 11 is provided with an elastically retractable probe 15. By limiting the probe 15 to be elastically retractable, not only can the connection reliability between the probe 15 and the interface needle 12 be improved, but it can also be used to realize the holding mechanism described below. The layer plate 4 is provided with a pair of shaft seats 17 on both sides of the main connector 8, and a pair of rocker arms 18 are connected to the shafts of the shaft seats 17. A pressing pulley 19 is installed on the rocker arms 18. In the above manner, the core component of the holding mechanism is formed. The core component of the holding mechanism adopts the design idea of ​​pressing the pressing pulley 19 to press the main connector 8 to realize the reliable holding of the electrical connection of the probe 15.

[0031] In order to realize the crimping of the holding mechanism, it is necessary to further arrange pressure blocks 20 on both sides of the main connector 8, and the pressure blocks 20 are provided with pressure surfaces 21 matching the shape of the pressing pulley 19, and the pressure surfaces 21 are arranged correspondingly on the path of the pressing pulley 19 turning around the shaft seat 17. In this way, the main connector 8 can be crimped by turning the rocker arm 18.

[0032] In order to further realize the positioning and holding of the holding mechanism, it is necessary to provide a positioning bracket 22 disposed on the upper and lower surfaces of the layer plate 4 beside the shaft seat 17, and a knob plunger 23 is installed on the positioning bracket 22, and a clamping hole 24 matching the knob plunger 23 is provided on the rocker arm 18. In this way, when the rocker arm 18 is turned over and the pressing action of the pressing pulley 19 on the main connector 8 is formed in place, it is only necessary to move the clamping hole 24 on the rocker arm 18 into the knob plunger 23, and the plug ball on the knob plunger 23 can realize the clamping and fixing of the clamping hole 24 on the rocker arm 18.

[0033] Furthermore, a first quick-change plate 25 is provided on the first slide 5, the contoured limit seat 7 is provided on the first quick-change plate 25, quick-change handles 26 are provided on both sides of the first quick-change plate 25, and a quick-change lock 27 for locking the first slide 5 is provided on the edge of the first quick-change plate 25.

[0034] Furthermore, a second quick-change plate 34 is provided on the second slide 10 , the auxiliary connector 9 is provided on the second quick-change plate 34 , quick-change handles 26 are provided on both sides of the second quick-change plate 34 , and a quick-change lock 27 for locking the second slide 10 is provided on the edge of the second quick-change plate 34 .

[0035] Furthermore, the second slide 10 is provided with a wire hole 36, and a Z-shaped rotating lever 37 is provided below the second slide 10 and on the layer plate 4. The rotating lever 37 is composed of a slave power arm 38 of equal length to the wire hole 36 and a master power arm 39 of greater length than the slave power arm 38. A handle 40 is provided at one end of the rotating lever 37, that is, the end of the master power arm 39, and a toggle pulley 41 is provided at the other end (that is, the end of the slave power arm 38). In addition, a rotating shaft 42 fixed on the layer plate 4 is provided on the rotating lever 37, and the distance between the rotating shaft 42 and the toggle pulley 41 matches the length of the wire hole 36. In the wire diameter direction of the optical axis guide rail 6, the rotating shaft 42 is aligned with one end of the wire hole 36. The toggle pulley 41 is inserted into the wire hole 36, and the rotating lever 37 can push the first slide 5 and the second slide 10 onto the main connector 8 within the radius. The second slide 10 can make the second slide 10, the first slide 5 and the main connector 8 close to each other within the travel range not exceeding the length of the wire hole 36, and the main connector 8 and the auxiliary connector 9 can be simultaneously plugged into the tested product.

[0036] In order to further realize the retraction operation after the high-voltage resistance test is completed, the main connector 8 is provided with a primary spring ejector pin 51 for pushing open the first slide 5; a first impact block 52 is provided at the bottom of the first slide 5, and a second impact block 53 is provided at the bottom of the second slide 10. The first impact block 52 is provided with a secondary spring ejector pin 55 for pushing open the second slide 10, and the secondary spring ejector pin 55 matches and contacts the second impact block 53.

[0037] To sum up, the utility model provides a PLC high-voltage test equipment, which is used to realize the linkage electrical connection of the bidirectional interface of the voltage test. The rotating lever 37 can be linked to load the main and auxiliary connectors 9 with one toggle, and the main connector 8 can realize reliable crimping and rapid unloading of the circuit through the crimping operation of the pressing pulley 19, so that the voltage test process can be implemented safely, reliably and efficiently.

[0038] The above description is only an embodiment of the present invention, and does not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made using the contents of the present invention specification, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A PLC high voltage test device, characterized in that: It includes a test box, a VPC connector, a withstand voltage tester, a layer plate, a first slide, an optical axis guide rail, a contour limit seat, a main connector, and a sub-connector. The test box is electrically connected to the withstand voltage tester via the VPC connector. The test box has a built-in layer plate and is provided with an optical axis guide rail that supports the first slide. The first slide is provided with a contour limit seat. The contour limit seat is respectively connected to the main connector and the sub-connector on both sides along the line diameter direction of the optical axis guide. The main connector and the sub-connector are respectively electrically connected to the VPC connector.

2. The PLC high voltage test equipment according to claim 1, characterized in that: The optical axis guide rail also carries a second slide, and the auxiliary connector is arranged on the second slide.

3. The PLC high voltage test equipment according to claim 1, characterized in that: A pin row electrically connected to the VPC connector is suspended on the bottom surface of the layer board, the layer board is opened directly above the pin row and a main connector is placed thereon, and interface pins electrically connected to the pin row are arranged at the bottom of the main connector; the top surfaces of the main connector and the auxiliary connector are provided with Z-axis guide baffles.

4. The PLC high voltage test equipment according to claim 3, characterized in that: The needle row is composed of a carrier plate hoisted at the bottom of the layer plate and a large number of probes vertically connected to the carrier plate. Guide holes are arranged at both ends of the carrier plate, and guide columns corresponding to the guide holes are arranged at the bottom of the main connector.

5. The PLC high voltage test equipment according to claim 3, characterized in that: The needle row is provided with an elastic telescopic probe, the layer plate is provided with a pair of shaft seats on both sides of the main connector, the shaft seats are connected to a pair of rocker arms, and the rocker arms are provided with a downward pressure pulley.

6. The PLC high voltage test equipment according to claim 5, characterized in that: Pressure blocks are arranged on both sides of the main connector. The pressure blocks are provided with pressure-bearing surfaces matching the shape of the pressure pulley. The pressure-bearing surfaces are arranged correspondingly on the path along which the pressure pulley turns around the shaft seat.

7. The PLC high voltage test equipment according to claim 5, characterized in that: The shaft seat is matched with positioning brackets which are arranged on the upper and lower surfaces of the layer plate, the positioning bracket is installed with a knob plunger, and the rocker arm is provided with a clamping hole matching the knob plunger.

8. The PLC high voltage test equipment according to claim 1, characterized in that: A first quick-change plate is arranged on the first slide, the contoured limit seat is arranged on the first quick-change plate, quick-change handles are arranged on both sides of the first quick-change plate, and a quick-change lock buckle for locking the first slide is arranged on the edge of the first quick-change plate.

9. The PLC high voltage test equipment according to claim 2, characterized in that: The second slide is provided with a second quick-change plate, the auxiliary connector is provided on the second quick-change plate, quick-change handles are provided on both sides of the second quick-change plate, and a quick-change lock buckle for locking the second slide is provided at the edge of the second quick-change plate.

10. The PLC high voltage test equipment according to claim 2, characterized in that: A wire hole is provided on the second slide, a Z-shaped rotating lever is provided on the layer plate, a handle is provided on one end of the rotating lever, and a toggle pulley is provided on the other end, the toggle pulley is inserted into the wire hole, and the rotating lever can push the first slide and the second slide onto the main connector within a radius; the main connector is provided with a primary spring ejector for pushing the first slide open; a first impact block is provided at the bottom of the first slide, and a second impact block is provided at the bottom of the second slide, the first impact block is provided with a secondary spring ejector for pushing the second slide open, and the secondary spring ejector matches and top-connects the second impact block.

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