Test fixture for power module of intelligent valve positioner

Abstract

The utility model discloses an intelligent valve positioner power supply module test fixture, which comprises a test control box and a first mounting plate arranged on one side of the test control box, the first mounting plate is provided with a plurality of probes, each probe is electrically connected with a test control circuit board in the test control box, and the test control circuit board is electrically connected with the first mounting plate. The side, away from the test control box, of the first mounting plate is connected with a second mounting plate through a telescopic assembly, the second mounting plate is provided with a test groove, and the test groove is provided with a plurality of through holes. According to the intelligent valve positioner power supply module test fixture, the test cost of the power supply module is reduced, the convenience and efficiency of the test of the power supply module are improved, and the risk that the power supply module pops up from the test groove and falls off and is damaged is reduced under the action of the control assembly.

Description

Technical Field

[0001] The utility model relates to the technical field of intelligent valve positioner power module testing, in particular to an intelligent valve positioner power module testing fixture. Background Art

[0002] The power module is one of the core components of the intelligent valve positioner. It is mainly responsible for converting the external power supply into the operating voltage required by each module inside the device, thereby ensuring that the device can operate stably under various working conditions and providing the necessary power guarantee.

[0003] In order to ensure that the power module meets the use requirements or daily maintenance and inspection after production, the power module will be tested using a test fixture. During the test, the power module is placed in a second mounting plate with a test slot, and then the handrail is rotated and pressed so that the pressing column is pressed against the bolt fixing hole of the power module. Finally, a probe electrically connected to the test circuit board in the test control box is used to act on it to achieve testing. The second mounting plate with a test slot is connected to the first mounting plate set on the test control box through four elastic telescopic sleeves. Therefore, when the test of the power module is completed, when the pressing column releases the pressure on the power module, the elastic action of the elastic telescopic sleeve will push the second mounting plate away from the test control box, and then under the elastic reset action, the second mounting plate will be subjected to a larger impact force, causing the power module placed on the second mounting plate to pop out of the test slot, increasing the risk of falling and damage to the power module, and further reducing the test safety of the power module.

[0004] Therefore, there is an urgent need for an intelligent valve positioner power module test fixture to solve the above problems. Utility Model Content

[0005] The purpose of the present invention is to provide a test fixture for a power module of an intelligent valve positioner, so as to solve the problem of the risk of the power module being damaged by falling proposed in the above background technology.

[0006] To achieve the above-mentioned object, the present invention provides the following technical solution: a test fixture for a power module of an intelligent valve positioner, comprising a test control box, a display panel and a control switch being provided on one side of the test control box, and a first mounting plate being provided on one side of the test control box, wherein the first mounting plate is provided with a plurality of probes, each of the probes being electrically connected to a test control circuit board inside the test control box, a side of the first mounting plate away from the test control box being connected to a second mounting plate via a telescopic assembly, the second mounting plate being provided with a test slot, the test slot being provided with a plurality of through holes, each of the through holes being matched with a probe, and the test control box being provided with a clamping assembly for clamping the power module;

[0007] The telescopic assembly includes four telescopic tubes fixedly connected to the side of the first mounting plate away from the test control box and symmetrically arranged in pairs. The four telescopic tubes are slidably connected to telescopic rods. One end of the four telescopic rods is connected to the second mounting plate. The other ends of the four telescopic rods are located in the telescopic tubes and fixedly connected to the telescopic plates. The four telescopic plates are fixedly connected to the side away from the telescopic rods. The other ends of the four telescopic springs are connected to the inner wall of the telescopic tube. The four telescopic tubes are provided with a control assembly for controlling the elastic force of the telescopic springs.

[0008] The control assembly includes two symmetrically arranged U-shaped control tubes fixedly connected to the side walls of the telescopic tube. The two ends of the two U-shaped control tubes are respectively arranged close to the upper and lower inner walls of the telescopic tube. The telescopic tube is filled with damping fluid, and the damping fluid flows through the two U-shaped control tubes. The two U-shaped control tubes are provided with an adjustment assembly for adjusting the flow resistance of the damping fluid.

[0009] The adjustment component includes an adjustment frame fixedly connected to the side wall of the U-shaped control tube, the adjustment frame is slidably connected to an adjustment plate, the adjustment plate is provided with a plurality of adjustment holes with different diameters, and the adjustment frame is provided with a moving component for moving the adjustment plate.

[0010] Two opposite ends of each adjusting hole are beveled.

[0011] The movable assembly includes a fixed plate fixedly connected to two opposite side walls of the adjustment frame, the two fixed plates are fixedly connected to a movable tube on one side away from the telescopic tube, one of the two movable tubes is slidably connected to a movable rod, the movable rod is fixedly connected to a sliding plate on the side away from the fixed plate, one side of the adjustment plate is connected to the sliding plate, the other of the two movable tubes is threadedly connected to a threaded rod, the sliding plate is rotatably connected to a rotating rod, one end of the rotating rod is connected to the threaded rod, and the other end of the rotating rod is fixedly connected to a ball handle.

[0012] The clamping assembly includes a support plate fixedly connected to the side of the test control box close to the first mounting plate, four connecting plates symmetrically arranged in pairs are fixedly connected to one side of the support plate, a guide rod is fixedly connected between two opposite connecting plates, two guide rods are slidably connected to a third mounting plate, a plurality of pressing columns are provided on the side of the third mounting plate close to the test control box, and the support plate is provided with a driving assembly for driving each pressing column.

[0013] The driving assembly includes a mounting bracket fixedly connected to a side of the support plate close to the third mounting plate, the mounting bracket is slidably connected to a driving tube, one end of the driving tube close to the test control box is connected to the third mounting plate through a threaded adjustment rod, the other end of the driving tube is rotatably connected to a connecting bracket, the mounting bracket is rotatably connected to a handrail, and the connecting bracket is rotatably connected to the handrail.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] The intelligent valve positioner power module test fixture of the present utility model is electrically connected to the test control circuit board inside the test control box through a probe, thereby realizing the electrical connection between the test control circuit board and other test auxiliary modules in the test control box and the power module, thereby reducing the cost of power module testing while improving the convenience and efficiency of power module testing. At the same time, under the action of the control component, the reverse elastic force exerted on the second mounting plate is controlled, thereby reducing the impact force exerted on the second mounting plate, and further reducing the risk of the power module being ejected from the test slot and falling and damaged, thereby improving the safety of power module testing. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the test slot structure of the present utility model;

[0018] Figure 3 This is a schematic diagram of the internal structure of the telescopic component of the present utility model;

[0019] Figure 4 This is a schematic diagram of the control component structure of the utility model;

[0020] Figure 5 This is a schematic diagram of the structure of the mobile component of the utility model;

[0021] Figure 6 This is a schematic structural diagram of the clamping assembly and the driving assembly of the present utility model.

[0022] In the figure: 101, test control box; 102, display panel; 103, control switch; 2, first mounting plate; 3, probe; 4, second mounting plate; 5, test slot; 6, through hole; 701, telescopic tube; 702, telescopic rod; 703, telescopic plate; 704, telescopic spring; 8, U-shaped control tube; 901, adjustment frame; 902, adjustment plate; 903, adjustment hole; 1001, fixed plate; 1002, moving tube; 1003, moving rod; 1004, sliding plate; 1005, threaded rod; 1006, ball handle; 1101, support plate; 1102, connecting plate; 1103, guide rod; 1104, third mounting plate; 1105, pressing column; 1201, mounting frame; 1202, drive tube; 1203, connecting frame; 1204, handrail. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0024] Example 1

[0025] See also Figures 1-6 The intelligent valve positioner power module test fixture shown in the figure includes a test control box 101, a display panel 102 and a control switch 103 are provided on one side of the test control box 101, and a first mounting plate 2 is provided on one side of the test control box 101. The first mounting plate 2 is provided with a plurality of probes 3, each of which is electrically connected to the test control circuit board inside the test control box 101. The first mounting plate 2 is connected to a second mounting plate 4 on a side away from the test control box 101 through a telescopic component. The second mounting plate 4 is provided with a test slot 5, and the test slot 5 is provided with a plurality of through holes 6, each of which is matched with the probe 3. The test control box 101 is provided with a clamping component for clamping the power module.

[0026] The telescopic assembly includes four telescopic tubes 701 fixedly connected to the side of the first mounting plate 2 away from the test control box 101, and are symmetrically arranged in pairs. The four telescopic tubes 701 are slidably connected to telescopic rods 702. One end of the four telescopic rods 702 is connected to the second mounting plate 4. The other ends of the four telescopic rods 702 are located in the telescopic tubes 701 and are fixedly connected to telescopic plates 703. The four telescopic plates 703 are fixedly connected to the side away from the telescopic rods 702. The other ends of the four telescopic springs 704 are connected to the inner wall of the telescopic tubes 701. The four telescopic tubes 701 are provided with a control assembly for controlling the elastic force of the telescopic springs 704.

[0027] It should be noted here that: by electrically connecting the probe 3 to the test control circuit board inside the test control box 101, the electrical connection between the test control circuit board and other test auxiliary modules in the test control box 101 and the power module is realized, thereby reducing the cost of testing the power module while improving the convenience and efficiency of testing the power module.

[0028] See also Figure 3-Figure 5 The control assembly shown in the figure includes two symmetrically arranged U-shaped control tubes 8 fixedly connected to the side walls of the telescopic tube 701. The ends of the two U-shaped control tubes 8 are respectively located near the upper and lower inner walls of the telescopic tube 701. The telescopic tube 701 is filled with damping fluid, which flows through the two U-shaped control tubes 8. The two U-shaped control tubes 8 are equipped with adjustment components for adjusting the flow resistance of the damping fluid.

[0029] It should be noted here that: through the setting of the control component, the reverse elastic force acting on the second mounting plate 4 is controlled, thereby reducing the impact force acting on the second mounting plate 4, and further reducing the risk of the power module being popped out of the test slot 5 and falling and damaged, thereby improving the safety of the power module test.

[0030] See also Figure 4 and Figure 5 The adjustment assembly shown in the figure includes an adjustment frame 901 fixedly connected to the side wall of the U-shaped control tube 8, the adjustment frame 901 is slidably connected to an adjustment plate 902, the adjustment plate 902 is provided with a plurality of adjustment holes 903 of different diameters, and the adjustment frame 901 is provided with a moving assembly for moving the adjustment plate 902;

[0031] It should be noted that: by adjusting the setting of the component, the elastic force of the telescopic spring 704 is controlled while adapting to the test requirements of different models of power modules.

[0032] See also Figure 5 , the two opposite ends of each adjustment hole 903 in the figure are beveled;

[0033] It should be noted here that the setting of the oblique angle is used to guide the flow of the damping fluid.

[0034] See also Figure 4 and Figure 5The moving assembly shown in the figure includes a fixed plate 1001 fixedly connected to two opposite side walls of the adjustment frame 901, a moving tube 1002 fixedly connected to the side of the two fixed plates 1001 away from the telescopic tube 701, a moving rod 1003 slidably connected to one of the two moving tubes 1002, a sliding plate 1004 fixedly connected to the side of the moving rod 1003 away from the fixed plate 1001, one side of the adjustment plate 902 is connected to the sliding plate 1004, the other side of the two moving tubes 1002 is threadedly connected to a threaded rod 1005, the sliding plate 1004 is rotatably connected to a rotating rod, one end of the rotating rod is connected to the threaded rod 1005, and the other end of the rotating rod is fixedly connected to a ball handle 1006;

[0035] It should be noted here that the setting of the moving component facilitates the movement of the adjustment plate 902.

[0036] Working principle: When testing the power module, first place the power module in the test slot 5 on the second mounting plate 4. The test slot 5, which is matched with the power module, is used to define the position of the power module.

[0037] After the position of the power module is defined, the pressing assembly can be used to press the power module under the driving action of the driving assembly. During the pressing and tightening process of the power module, each probe 3 will pass through the through hole 6 on the second mounting plate 4 and contact the detection point of the power module.

[0038] After the power module is pressed and the probe 3 is in contact with the detection point of the power module, the control switch 103 can be started to test the power module under the test action of the probe 3 electrically connected to the test control circuit board inside the test control box 101, and the test result will be displayed on the display panel 102. As a result, during the test of the power module, the power module does not need to be welded and assembled with other modules. The probe 3 is electrically connected to the test control circuit board inside the test control box 101, and the electrical connection between the test control circuit board and other test auxiliary modules in the test control box 101 and the power module is achieved, thereby reducing the cost of testing the power module and improving the convenience and efficiency of testing the power module.

[0039] When the pressing assembly presses the power module, the telescopic spring 704 is compressed, causing the telescopic spring 704 to deform under stress and generate elastic force. After the power module is tested, the pressure on the power module is released. At this time, the elastic action of the telescopic spring 704 pushes the telescopic plate 703 to move within the telescopic tube 701, further pushing the second mounting plate 4 away from the first mounting plate 2.

[0040] Furthermore, as the telescopic plate 703 moves within the telescopic tube 701, it forces the damping fluid within the telescopic tube 701 to flow only through the two U-shaped control tubes 8, thereby forming a damping buffer mechanism. This further controls the reverse elastic force exerted on the second mounting plate 4, thereby reducing the impact force exerted on the second mounting plate 4. This in turn reduces the risk of the power module being ejected from the test slot 5 and falling and being damaged, thereby improving the safety of power module testing.

[0041] At the same time, by using a moving component to match the adjustment holes 903 of different diameters on the adjustment plate 902 with the U-shaped control tube 8, the resistance of the damping fluid flowing from the U-shaped control tube 8 can be adjusted, thereby achieving control of the elastic force of the telescopic spring 704 while adapting it to the needs of testing different models of power modules.

[0042] Example 2

[0043] See also Figure 6 , this embodiment further explains Example 1. The clamping assembly shown in the figure includes a support plate 1101 fixedly connected to the side of the test control box 101 close to the first mounting plate 2. Four connecting plates 1102 symmetrically arranged in pairs are fixedly connected to one side of the support plate 1101. A guide rod 1103 is fixedly connected between two opposite connecting plates 1102. The two guide rods 1103 are slidably connected to a third mounting plate 1104. A plurality of pressing columns 1105 are provided on the side of the third mounting plate 1104 close to the test control box 101. The support plate 1101 is provided with a driving assembly for driving each pressing column 1105.

[0044] It should be noted here that: by setting the pressing assembly, the power module is pressed, thereby ensuring the stability of the power module test.

[0045] See also Figure 6 The driving assembly shown in the figure includes a mounting bracket 1201 fixedly connected to the side of the support plate 1101 close to the third mounting plate 1104, the mounting bracket 1201 is slidably connected to the driving tube 1202, one end of the driving tube 1202 close to the test control box 101 is connected to the third mounting plate 1104 through a threaded adjustment rod, the other end of the driving tube 1202 is rotatably connected to the connecting bracket 1203, the mounting bracket 1201 is rotatably connected to the handrail 1204, and the connecting bracket 1203 is rotatably connected to the handrail 1204;

[0046] It should be noted here that: by setting the driving assembly, it is convenient to drive the third mounting plate 1104 to move closer to or away from the test control box 101.

[0047] Working principle: After the power module is placed in the test slot 5 of the second mounting plate 4, the connecting frame 1203 can be rotated and pressed by rotating the hand lever 1204, further driving the driving tube 1202 to move close to the test control box 101, thereby pushing the third mounting plate 1104 to move close to the power module. In the process of the third mounting plate 1104 moving close to the power module, it will drive each pressing column 1105 to move synchronously. When each pressing column 1105 is against the power module, under the action of the driving force, the power module will be pushed to move close to the test control box 101. In the process of the power module moving close to the test control box 101, each probe 3 will pass through the through hole 6 on the second mounting plate 4, so that the pressing effect of each probe 3 against the test point of the power module and the pressing effect of the pressing column 1105 on the power module realize the compression of the power module, thereby ensuring the stability of the power module test.

[0048] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. Intelligent valve positioner power module test fixture, including: A test control box (101), wherein a display panel (102) and a control switch (103) are provided on one side of the test control box (101); It is characterized by further comprising: A first mounting plate (2) is provided on one side of the test control box (101), the first mounting plate (2) is provided with a plurality of probes (3), each of the probes (3) is electrically connected to a test control circuit board inside the test control box (101), a side of the first mounting plate (2) away from the test control box (101) is connected to a second mounting plate (4) via a telescopic assembly, the second mounting plate (4) is provided with a test slot (5), the test slot (5) is provided with a plurality of through holes (6), each of the through holes (6) is matched with the probe (3), and the test control box (101) is provided with a pressing assembly for pressing the power module; The telescopic assembly comprises four telescopic tubes (701) fixedly connected to a side of the first mounting plate (2) away from the test control box (101) and symmetrically arranged in pairs, the four telescopic tubes (701) being slidably connected to telescopic rods (702), one end of the four telescopic rods (702) being connected to the second mounting plate (4), the other end of the four telescopic rods (702) being located in the telescopic tube (701) and fixedly connected to a telescopic plate (703), the side of the four telescopic plates (703) away from the telescopic rod (702) being fixedly connected to a telescopic spring (704), the other end of the four telescopic springs (704) being connected to the inner wall of the telescopic tube (701), and the four telescopic tubes (701) being provided with a control assembly for controlling the elastic force of the telescopic springs (704); The control assembly comprises two mutually symmetrically arranged U-shaped control tubes (8) fixedly connected to the side wall of the telescopic tube (701), the two ends of the two U-shaped control tubes (8) being respectively arranged close to the upper and lower inner walls of the telescopic tube (701), the telescopic tube (701) being filled with damping fluid, the damping fluid flowing through the two U-shaped control tubes (8), and the two U-shaped control tubes (8) being provided with an adjustment assembly for adjusting the flow resistance of the damping fluid.

2. The intelligent valve positioner power module test fixture according to claim 1, characterized in that: The adjustment assembly comprises an adjustment frame (901) fixedly connected to the side wall of the U-shaped control tube (8); the adjustment frame (901) is slidably connected to an adjustment plate (902); the adjustment plate (902) is provided with a plurality of adjustment holes (903) of different diameters; and the adjustment frame (901) is provided with a moving assembly for moving the adjustment plate (902).

3. The intelligent valve positioner power module test fixture according to claim 2, characterized in that: The two opposite ends of each of the adjustment holes (903) are beveled.

4. The intelligent valve positioner power module test fixture according to claim 2, characterized in that: The moving assembly comprises a fixed plate (1001) fixedly connected to two opposite side walls of the adjustment frame (901); a moving tube (1002) is fixedly connected to one side of the two fixed plates (1001) away from the telescopic tube (701); one of the two moving tubes (1002) is slidably connected to a moving rod (1003); a sliding plate (1004) is fixedly connected to the side of the moving rod (1003) away from the fixed plate (1001); one side of the adjustment plate (902) is connected to the sliding plate (1004); the other side of the two moving tubes (1002) is threadedly connected to a threaded rod (1005); the sliding plate (1004) is rotatably connected to a rotating rod; one end of the rotating rod is connected to the threaded rod (1005); and the other end of the rotating rod is fixedly connected to a ball handle (1006).

5. The intelligent valve positioner power module test fixture according to claim 1, characterized in that: The clamping assembly comprises a support plate (1101) fixedly connected to a side of the test control box (101) close to the first mounting plate (2); four connecting plates (1102) symmetrically arranged in pairs are fixedly connected to one side of the support plate (1101); a guide rod (1103) is fixedly connected between two opposing connecting plates (1102); two guide rods (1103) are slidably connected to a third mounting plate (1104); a plurality of pressing columns (1105) are provided on a side of the third mounting plate (1104) close to the test control box (101); and the support plate (1101) is provided with a driving assembly for driving each pressing column (1105).

6. The intelligent valve positioner power module test fixture according to claim 5, characterized in that: The driving assembly includes a mounting frame (1201) fixedly connected to a side of the support plate (1101) close to the third mounting plate (1104); the mounting frame (1201) is slidably connected to a driving tube (1202); one end of the driving tube (1202) close to the test control box (101) is connected to the third mounting plate (1104) via a threaded adjustment rod; the other end of the driving tube (1202) is rotatably connected to a connecting frame (1203); the mounting frame (1201) is rotatably connected to a handrail (1204); and the connecting frame (1203) is rotatably connected to the handrail (1204).

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