A guide rail surface calibration tool device and calibration method based on a calibration platform body

Abstract

A kind of guide rail meter verification tool device based on verification platform body, including current pin seat, current wire harness and meter holder, the current socket on guide rail meter is connected with current pin, and current wire harness is connected with current pin seat;Current pin is placed in current pin seat, and meter holder is arranged on the both sides of current pin seat;The verification tool device further includes auxiliary needle, horn socket and PCB, auxiliary needle box, auxiliary wire harness and tool base plate;Auxiliary needle box is connected with horn socket and PCB, and auxiliary needle is connected below auxiliary needle box;The both ends of auxiliary wire harness are flat cable, one end of flat cable is connected with horn socket and the horn socket of PCB, and the other end of flat cable is connected with the horn socket of verification platform body;Guide rail meter is installed on tool base plate by double-bar large pressure;Verification tool device is fixed on verification platform body by tool base plate.The present application can reduce cost expenditure, reduce expense, meet the demand of guide rail meter verification.

Description

Technical Field

[0001] This invention relates to the field of instrumentation technology, specifically to a calibration fixture and method for a guide rail gauge based on a calibration platform. Background Technology

[0002] Currently, the single-phase and three-phase electricity meters procured by the State Grid are quite mature and complete in terms of type specifications and technical standards. Various calibration bench manufacturers have designed calibration benches based on the State Grid electricity meter standards, featuring convenient connectors, excellent copper contact, and high efficiency, speed, and convenience in meter calibration. Rail-mounted meters, due to their rail-mounted and modular design, offer advantages such as small size, easy installation, and integration, making them easier to implement for terminal energy metering. The retrofitting of industrial energy metering systems with these meters is already widely used in China, and with increasing demand, their application is expanding, and the number of installations is growing. However, for DIN rail energy meters, there are currently no unified national type specifications and technical standards. Various manufacturers of calibration fixtures have not yet started designing and researching calibration fixtures for DIN rail meters, and there are no efficient, fast, and convenient calibration fixtures available on the market. Therefore, current DIN rail meter calibration fixtures have problems such as inconvenient installation of lead wires, inconvenient plugging, and unreliable contact. They are time-consuming, labor-intensive, inefficient, and prone to false detections.

[0003] With the increasing demand for guide rail gauge calibration, various table manufacturers are designing and developing calibration tables specifically for guide rail gauges. However, using a dedicated calibration table involves purchasing equipment, which is expensive and has poor versatility. Furthermore, as an asset, it requires space and management. The calibration table needs maintenance, repair, and upkeep, as well as regular calibration of standard gauges, leading to significantly increased operating costs. This is especially inconvenient for calibration centers with limited laboratory space. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a guide rail gauge calibration fixture and calibration method based on a calibration platform, which can reduce costs and expenses while quickly meeting the calibration needs of guide rail gauges.

[0005] The present invention adopts the following technical solution.

[0006] On the one hand, the present invention provides a guide rail meter calibration fixture based on a calibration platform, including a current pin socket, a current harness and a meter holder. The current socket on the guide rail meter is connected to the current pin, and the current harness is connected to the current pin socket. The current pin is placed in the current pin socket, and meter holders are provided on both sides of the current pin socket.

[0007] The calibration fixture also includes an auxiliary pin, a horn socket and PCB, an auxiliary pin box, an auxiliary wire harness and a fixture base plate; the auxiliary pin box is connected to the horn socket and PCB, and the auxiliary pin is connected to the bottom of the auxiliary pin box; the two ends of the auxiliary wire harness are ribbon cables, one end of the ribbon cable is connected to the horn socket and the horn socket of the PCB, and the other end of the ribbon cable is connected to the horn socket of the calibration table body.

[0008] The guide rail is mounted on the tooling base plate by a double-rod pressure system.

[0009] The calibration fixture is fixed to the calibration table body via a fixture base plate.

[0010] Furthermore, the guide rail meter is fixedly installed by first loosening the double rods upwards, placing the guide rail meter on the tooling base plate, with the current socket of the guide rail meter corresponding to the current pin socket, and then pressing down the double rods and tightening them so that the current pin is in full contact with the guide rail meter.

[0011] Furthermore, before connecting the current harness to the current pin socket, the current pins of the calibration platform should be removed.

[0012] Furthermore, one end of the current harness is connected to the threaded hole at the tail of the current pin socket with a screw and an insulating sleeve is fitted on it, and the other end is connected to the threaded pin hole of the pin removed from the calibration platform with a screw and an insulating sleeve is fitted on it.

[0013] Furthermore, the calibration fixture also includes an auxiliary needle box frame, which is connected to the fixture base plate, and an auxiliary needle box is provided on the auxiliary needle box frame.

[0014] Furthermore, the calibration fixture also includes a handle;

[0015] Press the handle, and the auxiliary needle and auxiliary needle box will move to the guide rail, so that the auxiliary needle contacts the guide rail.

[0016] On the other hand, this patent provides a method for calibrating a guide rail gauge based on a calibration platform, including the following steps:

[0017] Step 1: Release the double rod pressure upwards, place the guide rail meter on the calibration fixture, and align the current socket with the current pin socket of the calibration fixture. Press down the double rod pressure and tighten it to make the current pin fully contact the guide rail meter, thereby completing the fixing of the guide rail meter and the calibration fixture.

[0018] Step 2: Remove the current pins from the calibration stand, then connect one end of the current harness of the calibration fixture to the threaded hole at the tail of the current pin socket with a screw and put on an insulating sleeve, and connect the other end to the threaded hole of the removed pins on the calibration stand with a screw and put on an insulating sleeve. Then, erect the calibration fixture base plate on the table support of the calibration stand and fix it.

[0019] Step 3: Insert one end of the ribbon cable at both ends of the auxiliary wire harness into the horn socket of the calibration fixture and the horn socket of the PCB, and insert the other end into the horn socket of the calibration table; move the auxiliary pin and auxiliary pin box to the guide rail dial indicator so that the auxiliary pin is in full contact with the guide rail dial indicator.

[0020] Step 4: Set the parameters of the calibration bench and perform live calibration on the tooling calibration device;

[0021] Step 5: After the calibration is completed, remove the guide rail gauge.

[0022] The beneficial effects of this invention are compared with those of the prior art:

[0023] 1. This calibration fixture transfers the current terminal calibration and auxiliary signal terminal signal calibration of the rail meter to the calibration platform, thereby fulfilling the calibration requirements of the rail meter and greatly improving the equipment utilization rate of the State Grid electricity meter standard calibration platform.

[0024] 2. This calibration fixture can reduce costs and expenses.

[0025] 3. This calibration fixture has advantages such as convenient insertion and good contact, which also makes the calibration of guide rail gauges efficient, fast, convenient and reliable.

[0026] 4. This calibration fixture has the advantages of small size, high precision, convenient installation, and quick installation. Attached Figure Description

[0027] Figure 1 A schematic diagram of a guide rail gauge calibration fixture based on a calibration platform provided by the present invention;

[0028] Figure 2 A top view of a guide rail gauge calibration fixture based on a calibration platform provided by the present invention;

[0029] Figure 3 The left view shows a guide rail gauge calibration fixture based on a calibration platform provided by the present invention.

[0030] In the picture:

[0031] 1-Guide rail; 2-Double rod high pressure; 3-Auxiliary pin box frame; 4-Handle; 5-Current pin; 6-Current pin socket; 7-Current wire harness; 8-Meter holder; 9-Auxiliary pin; 10-Horn socket and PCB; 11-Auxiliary pin box; 12-Auxiliary wire harness; 13-Tooling base plate. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of this invention. The embodiments described in this application are merely some embodiments of this invention, and not all embodiments. Based on the spirit of this invention, other embodiments obtained by those skilled in the art without creative effort are all within the protection scope of this invention.

[0033] like Figure 1-3 As shown, a guide rail meter calibration fixture based on a calibration platform includes: a guide rail meter 1, a double-rod pressure bar 2, an auxiliary pin box frame 3, a handle 4, a current pin 5, a current pin socket 6, a current wire harness 7, a meter holder 8, an auxiliary pin 9, a horn socket and PCB 10, an auxiliary pin box 11, an auxiliary wire harness 12, and a fixture base plate 13.

[0034] The guide rail meter 1 is fixedly mounted on the fixture base plate 13 via the double rod pressure 2, and the fixture base plate 13 is fixed on the calibration table body; the current socket on the guide rail meter 1 is connected to the current pin 5, and the current wire harness 7 is connected to the current pin socket 6; the current pin 5 is placed in the current pin socket 6, and the current pin socket 6 has meter supports 8 on both sides; the auxiliary pin box frame 3 is connected to the fixture base plate 13, and the auxiliary pin box frame 3 has an auxiliary pin box 11, which is connected to the horn socket and PCB 10, and the auxiliary pin 9 is connected below the auxiliary pin box 11; the two ends of the auxiliary wire harness 12 are ribbon cables, one end of which is connected to the horn socket and the horn socket of PCB 10, and the other end of which is connected to the horn socket of the calibration table body.

[0035] like Figure 2-3 As shown, the calibration fixture is fixed as follows: First, unscrew the 6 copper current pins on the calibration platform and remove them. Then, tighten one end of the 6 current wire harnesses 7 of the calibration fixture to the threaded hole at the tail of the current pin holder 6 with an M6 screw and put on an insulating sleeve. Tighten the other end to the threaded hole of the pin that was just removed on the calibration platform with an M5 screw and put on an insulating sleeve. This connects the current calibration point of the guide rail meter 1 with the current calibration point of the calibration platform through the current wire harnesses 7. Then, erect the calibration fixture base plate 13 on the meter support of the calibration platform and fix the fixture base plate 13 to the calibration platform with a fastener at the top.

[0036] Fixed installation of the guide rail meter: First, loosen the double rod pressure 2 upwards, place the guide rail meter 1 on the calibration fixture, with the current socket of the guide rail meter facing down on the meter holder 8 of the calibration fixture, and make the current socket correspond one-to-one with the current pin seat 6 of the corresponding calibration fixture. Press down the double rod pressure 2 and tighten it so that the current pin 5 is in full contact with the M6 ​​screw of the guide rail meter 1.

[0037] A method for calibrating guide rail gauges based on a calibration bench includes the following steps:

[0038] Step 1: Loosen the double-bar pressure 2 upwards, place the guide rail meter 1 on the calibration fixture, and align the current socket with the current pin seat 6 of the calibration fixture. Press down the double-bar pressure 2 and tighten it so that the current pin 5 is in complete contact with the guide rail meter 1, thereby completing the fixing of the guide rail meter and the calibration fixture.

[0039] Step 2: Remove the current pins on the calibration table body, then connect one end of the current harness 7 of the calibration fixture to the threaded hole at the tail of the current pin seat 6 with a screw and put on an insulating sleeve, and connect the other end to the threaded pin hole of the removed pin on the calibration table body with a screw and put on an insulating sleeve. Then, erect the calibration fixture base plate 13 on the table support of the calibration table body and fix it.

[0040] The current socket of the guide rail meter 1 is connected to the current terminal of the calibration bench body via the current pin 5 and current harness 7 of the calibration fixture. The current of the guide rail meter 1 is transferred to the calibration bench body through the current pin 5 and current harness 7. Because the current pin 5 and current harness 7 are made of copper, they have the characteristics of convenient plug-in and good copper contact. Therefore, the standard calibration bench body can quickly and without overload the guide rail meter 1, thus realizing the calibration of the current terminal current of the fixture calibration device.

[0041] Step 3: Insert one end of the ribbon cable at both ends of the auxiliary wiring harness 12 into the horn socket of the calibration fixture and the horn socket of the PCB 10, and insert the other end into the horn socket of the calibration platform.

[0042] Pressing handle 4 on the platform moves auxiliary pin 9 and auxiliary pin box 11 to guide rail 1, so that auxiliary pin 9 corresponds one-to-one with guide rail 1 and makes full contact. In this way, the auxiliary signal function of guide rail 1 is transferred to the auxiliary signal line function of the calibration platform through auxiliary pin 9, auxiliary pin box 11 and auxiliary wire harness 12, realizing the auxiliary signal terminal signal calibration of the tooling calibration device.

[0043] Step 4: Set the parameters of the calibration bench and perform live calibration on the tooling calibration device;

[0044] Step 5: After the calibration is completed, remove the guide rail gauge.

[0045] The beneficial effects of this invention are compared with those of the prior art:

[0046] 1. This calibration fixture transfers the current terminal calibration and auxiliary signal terminal signal calibration of the rail meter to the calibration platform, thereby fulfilling the calibration requirements of the rail meter and greatly improving the equipment utilization rate of the State Grid electricity meter standard calibration platform.

[0047] 2. This calibration fixture can reduce costs and expenses.

[0048] 3. This calibration fixture has advantages such as convenient insertion and good contact, which also makes the calibration of guide rail gauges efficient, fast, convenient and reliable.

[0049] 4. This calibration fixture has the advantages of small size, high precision, convenient installation, and quick installation.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims

1. A guide rail meter calibration fixture based on a calibration platform, comprising a current pin socket (6), a current harness (7), and a meter holder (8), characterized in that: The current socket on the guide rail (1) is connected to the current pin (5), and the current wire harness (7) is connected to the current pin socket (6); the current pin (5) is placed in the current pin socket (6), and the current pin socket (6) has a watch holder (8) on both sides. Before connecting the current harness (7) to the current pin socket (6), remove the current pin from the test bench body; connect one end of the current harness (7) to the threaded hole at the tail of the current pin socket (6) with a screw and put on an insulating sleeve, and connect the other end to the threaded hole of the removed pin from the test bench body with a screw and put on an insulating sleeve. The calibration fixture also includes an auxiliary pin (9), a horn socket and a PCB (10), an auxiliary pin box (11), an auxiliary wire harness (12), and a fixture base plate (13); the auxiliary pin box (11) is connected to the horn socket and the PCB (10), and the auxiliary pin (9) is connected to the bottom of the auxiliary pin box (11); the two ends of the auxiliary wire harness (12) are ribbon cables, one end of which is connected to the horn socket and the horn socket of the PCB (10), and the other end of which is connected to the horn socket of the calibration table body; The guide rail (1) is mounted on the tooling base plate (13) by a double rod pressure (2); The calibration fixture is fixed to the calibration table body by the fixture base plate (13).

2. The guide rail gauge calibration fixture device based on a calibration platform according to claim 1, characterized in that: The guide rail meter (1) is fixedly installed by first loosening the double rod pressure (2) upwards, placing the guide rail meter (1) on the tool base plate (13), with the current socket of the guide rail meter (1) corresponding to the current pin seat (6), and then pressing down the double rod pressure (2) and tightening it so that the current pin (5) is in complete contact with the guide rail meter (1).

3. The guide rail gauge calibration fixture device based on a calibration platform according to claim 1, characterized in that: The calibration fixture also includes an auxiliary needle box frame (3), which is connected to the fixture base plate (13), and an auxiliary needle box (11) is provided on the auxiliary needle box frame (3).

4. The guide rail gauge calibration fixture device based on a calibration platform according to claim 1, characterized in that: The calibration tooling device also includes a handle (4). Press the handle (4), and the auxiliary needle (9) and auxiliary needle box (11) move toward the guide rail (1) so that the auxiliary needle (9) comes into contact with the guide rail (1).

5. A method for calibrating guide rail gauges based on a calibration platform, implemented using a guide rail gauge calibration fixture based on a calibration platform as described in any one of claims 1-4, characterized in that, Includes the following steps: Step 1: Loosen the double-bar pressure (2) upwards, place the guide rail meter (1) on the calibration fixture, and align the current socket with the current pin seat (6) of the calibration fixture. Press down the double-bar pressure (2) and tighten it so that the current pin (5) is in complete contact with the guide rail meter (1), thereby completing the fixing of the guide rail meter and the calibration fixture. Step 2: Remove the current pins on the calibration table body, then connect one end of the current harness (7) of the calibration fixture to the threaded hole at the tail of the current pin seat (6) with a screw and put on an insulating sleeve, and connect the other end to the threaded hole of the removed pin on the calibration table body with a screw and put on an insulating sleeve. Then, erect the calibration fixture base plate (13) on the table support of the calibration table body and fix it. Step 3: Insert one end of the ribbon cable at both ends of the auxiliary wire harness (12) into the horn socket of the calibration fixture and the horn socket of the PCB (10), and insert the other end into the horn socket of the calibration table body; the auxiliary pin (9) and the auxiliary pin box (11) move towards the guide rail (1) so that the auxiliary pin (9) is in complete contact with the guide rail (1); Step 4: Set the parameters of the calibration bench and perform live calibration on the guide rail gauge; Step 5: After the calibration is completed, remove the guide rail gauge.

6. The method for calibrating a guide rail gauge based on a calibration platform according to claim 5, characterized in that: In step 1, the current pin (5) and current wire harness (7) inside the current pin socket (6) are made of copper.

7. The method for calibrating a guide rail gauge based on a calibration platform according to claim 6, characterized in that: The calibration fixture transfers the current calibration of the current terminal of the guide rail meter (1) to the calibration platform via the current pin (5) and the current wire harness (7).

8. The method for calibrating a guide rail gauge based on a calibration platform according to claim 5, characterized in that: In step 3, the calibration fixture transfers the signal calibration of the auxiliary signal terminal of the guide rail gauge (1) to the calibration table body through the auxiliary needle (9), auxiliary needle box (11) and auxiliary wire harness (12).

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