Mutual inductor verification line tool mechanism

Abstract

The utility model relates to the field of mutual inductors, in particular to a mutual inductor verification line tool mechanism which comprises a positioning seat and a mutual inductor body, the mutual inductor body is located above the positioning seat, and the lower end of the mutual inductor body extends into the positioning seat; the positioning mechanism comprises a clamping assembly arranged in the positioning seat, and the surface of the clamping assembly extends to the outside of the positioning seat; the two sides of the mutual inductor body can be positioned through the arranged clamping assemblies, in the using process of an operator, the two-way screw rotates to drive the round pipe sleeve to linearly move along the surface of the two-way screw, threads with the two ends opposite in rotation direction are arranged on the surface of the two-way screw, and therefore the two-way screw can be conveniently clamped. The circular pipe sleeves located on the two sides of the mutual inductor body can get close to each other or get away from each other, and the two clamping plates can stably clamp the two sides of the mutual inductor body while getting close to each other along with the circular pipe sleeves.

Description

Technical Field

[0001] The utility model belongs to the technical field of instrument transformers, and particularly relates to a tooling mechanism for an instrument transformer calibration line. Background Art

[0002] With the rapid development of China's power industry, instrument transformers have been widely used. To meet the market demand, instrument transformers have gradually formed an automated assembly line production. In the process of large-scale production in an automated assembly line, the calibration of instrument transformers is one of the very important processes. The tooling mechanism for an instrument transformer calibration line is an auxiliary device specially designed for the instrument transformer calibration line. In the domestic power industry, low-voltage current transformers have basically achieved provincial centralized assembly line batch calibration;

[0003] After retrieving the prior art "clamping tooling tray for an automatic calibration line of instrument transformers", the publication number is "CN203405566U". One end of a spring of this device abuts against a positioning slider, and the other end of the spring abuts against the inner wall of the shell. One end of two connecting rods is respectively movably connected to both ends of a slider, and the other ends of the two connecting rods are respectively movably connected to one end of two positioning sliders corresponding to them. One end of another two connecting rods is respectively movably connected to both ends of another slider, and the other ends of the other two connecting rods are respectively movably connected to the other end of the two positioning sliders corresponding to them, forming a positioning clamping effect on the instrument transformer;

[0004] However, during the clamping process, due to its complex internal structure, and the internal structure forms clamping on the instrument transformer through the cooperation of a spring, but this clamping method is not firm enough. During the movement, the device shakes, which will cause the device driven by the spring to loosen the clamping on the instrument transformer. Summary of the Utility Model

[0005] (1) Technical Problems to be Solved

[0006] Aiming at the deficiencies of the prior art, the utility model provides a tooling mechanism for an instrument transformer calibration line, which solves the problems that the existing tooling mechanism for an instrument transformer calibration line has a non-firm enough clamping method, and the device shakes during the movement, which will cause the device driven by the spring to loosen the clamping on the instrument transformer.

[0007] (2) Technical Solutions

[0008] To achieve the above object, the utility model provides the following technical solutions:

[0009] An instrument transformer calibration line tooling mechanism includes: a positioning seat and an instrument transformer body. The instrument transformer body is located above the positioning seat, and the lower end of the instrument transformer body extends into the interior of the positioning seat; a positioning mechanism, which includes a clamping component arranged inside the positioning seat. The surface of the clamping component extends to the outside of the positioning seat, and a side support component is arranged on the surface of the clamping component. The surface of the side support component is in contact with the surface of the instrument transformer body.

[0010] As a preferred solution of the instrument transformer calibration line tooling mechanism described in the present utility model: The clamping component includes two clamping plates slidably connected to the upper end of the positioning seat. The two clamping plates are respectively arranged on both sides of the instrument transformer body. Two sliding grooves are opened at the upper end of the positioning seat. The lower ends of the clamping plates are fixedly connected with two sliding seats. The surface of the sliding seat is slidably connected to the inner wall of the adjacent sliding groove. A support plate is fixedly connected between one side of the sliding seats.

[0011] Based on the above technical features: When the two clamping plates are arranged to approach each other, they form a clamping effect on both sides of the instrument transformer body. Among them, the sliding seat slides on the inner wall of the sliding groove, so that the clamping plate will not easily change by a large angle, maintaining a good clamping and positioning effect on both sides of the instrument transformer body, and the support plate can form an auxiliary supporting effect on the instrument transformer body.

[0012] As a preferred solution of the instrument transformer calibration line tooling mechanism described in the present utility model: The side support component includes a soft film arranged at the upper end of the support plate. The middle part of the lower end of the soft film is fixedly connected to the middle part of the upper end of the support plate. A corrugated pipe is fixedly connected to the lower end near the end of the soft film. A ventilation pipe is communicated with the surface of the corrugated pipe. The other end of the ventilation pipe penetrates to the other side of the clamping plate, and the other end of the ventilation pipe is communicated with a pressure equalizing pipe.

[0013] Based on the above technical features: By injecting gas into the ventilation pipe, the corrugated pipe expands. Then, while the corrugated pipe expands, it pushes the position near the end of the soft film to approach the surface of the instrument transformer body, so as to assist in holding the instrument transformer body and also form an auxiliary positioning effect on the surface of the instrument transformer body.

[0014] As a preferred solution of the instrument transformer calibration line tooling mechanism described in the present utility model: The lower end of the sliding seat penetrates into the interior of the positioning seat and is fixedly connected with a circular pipe sleeve. The inner wall of one side of the circular pipe sleeve is slidably connected with a sliding rod, and the sliding rod is fixedly connected to the inner wall of the positioning seat.

[0015] Based on the above technical features: Among them, the circular pipe sleeve arranged can perform linear sliding on the surface of the sliding rod, ensuring that the clamping direction of the instrument transformer body will not easily change.

[0016] As a preferred embodiment of the tooling mechanism for the mutual inductor calibration line of the present utility model: A bidirectional screw is threadedly connected to the inner wall of the other round tube sleeve. The bidirectional screw is rotatably connected to the inner wall of the positioning seat, and the end of the bidirectional screw penetrates to the outside of the positioning seat.

[0017] Based on the above technical features: The end of the bidirectional screw penetrates into the counterbore opened on the surface of the positioning seat. The operator can rotate the bidirectional screw by using a tool, which will cause the bidirectional screw to form a rotating effect inside the positioning seat. At the same time, since the adjacent round tube sleeves will not rotate under the action of the sliding seat, and then under the action of the threaded connection between the round tube sleeve and the bidirectional screw, the round tube sleeve will move linearly along the surface of the bidirectional screw.

[0018] As a preferred embodiment of the tooling mechanism for the mutual inductor calibration line of the present utility model: Sealing cylinders are fixedly connected to both ends of the voltage equalizing tube. The voltage equalizing tube is communicated with the sealing cylinders, and the sealing cylinders are embedded in the clamping plate.

[0019] Based on the above technical features: Gas is injected into the voltage equalizing tube through the sealing cylinders, so that the air pressure inside the two sealing cylinders is kept balanced.

[0020] As a preferred embodiment of the tooling mechanism for the mutual inductor calibration line of the present utility model: A piston is slidably connected to the inner wall of the sealing cylinder. One side of the piston close to the mutual inductor body is fixedly connected with a pushing rod, and one end of the pushing rod penetrates to the outside of the sealing cylinder.

[0021] Based on the above technical features: When the clamping plate approaches the surface of the mutual inductor body, the pushing rod contacts the surface of the mutual inductor body. At this time, the pushing rod drives the piston to perform a relative displacement on the inner wall of the sealing cylinder, and then the gas inside the sealing cylinder will be injected into the voltage equalizing tube.

[0022] (III) Beneficial effects

[0023] Compared with the prior art, the present utility model provides a tooling mechanism for the mutual inductor calibration line, having the following beneficial effects: [[ID=...]]

[0024] The above-mentioned tooling mechanism for the mutual inductor calibration line can perform positioning operations on both sides of the mutual inductor body through the provided clamping assembly. During the use by the operator, the bidirectional screw can be rotated by an inner hexagon tool, so that the rotation of the bidirectional screw drives the round tube sleeve to move linearly along the surface of the bidirectional screw. There are threads with opposite rotation directions at both ends on the surface of the bidirectional screw, which can make the round tube sleeves located on both sides of the mutual inductor body approach or move away from each other. When the two clamping plates approach each other following the round tube sleeves, they can stably clamp both sides of the mutual inductor body;

[0025] While the clamping component clamps the surface of the mutual inductor body, it drives the ejecting rod to contact the surface of the mutual inductor body. At this time, the piston is driven by the ejecting rod to make a relative displacement on the inner wall of the sealed cylinder, and then the gas inside the sealed cylinder is injected into the pressure equalizing pipe, so that the air pressure inside the two sealed cylinders is balanced. The gas is injected into the ventilation pipe to make the corrugated pipe expand. Then, while the corrugated pipe expands, it pushes the soft film near the end position to approach the surface of the mutual inductor body, so as to assist in holding the mutual inductor body and also form an auxiliary positioning effect on the surface of the mutual inductor body Brief Description of the Drawings

[0026] Figure 1 is a schematic structural diagram of the present utility model;

[0027] Figure 2 is a schematic diagram of the internal structure of the positioning seat of the present utility model;

[0028] Figure 3 is an exploded structural diagram of the clamping component of the present utility model;

[0029] Figure 4 is an exploded structural diagram of the side support component of the present utility model;

[0030] Figure 5 is a schematic diagram of the internal structure of the sealed cylinder of the present utility model.

[0031] In the figure: 1, positioning seat; 2, mutual inductor body; 3, positioning mechanism; 31, clamping component; 311, chute; 312, bidirectional screw; 313, round pipe sleeve; 314, sliding seat; 315, clamping plate; 316, support plate; 317, sliding rod; 32, side support component; 321, sealed cylinder; 322, pressure equalizing pipe; 323, ventilation pipe; 324, corrugated pipe; 325, soft film; 326, ejecting rod; 327, piston. Detailed Embodiment

[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0033] During specific implementation: As Figures 1-5As shown in the figure, an instrument transformer calibration line tooling mechanism includes: a positioning seat 1 and an instrument transformer body 2. The instrument transformer body 2 is located above the positioning seat 1, and the lower end of the instrument transformer body 2 extends into the positioning seat 1; a positioning mechanism 3, the positioning mechanism 3 includes a clamping assembly 31 arranged inside the positioning seat 1, the surface of the clamping assembly 31 extends to the outside of the positioning seat 1, and a side support assembly 32 is arranged on the surface of the clamping assembly 31, and the surface of the side support assembly 32 is in contact with the surface of the instrument transformer body 2;

[0034] As Figures 1-4 shown, the clamping assembly 31 includes two clamping plates 315 slidably connected to the upper end of the positioning seat 1. The two clamping plates 315 are respectively arranged on both sides of the instrument transformer body 2. Two sliding grooves 311 are opened at the upper end of the positioning seat 1. The lower ends of the clamping plates 315 are fixedly connected with two sliding seats 314. The surface of the sliding seat 314 is slidably connected with the inner wall of the adjacent sliding groove 311. A support plate 316 is fixedly connected between the sliding seats 314 on one side. The lower end of the sliding seat 314 penetrates into the positioning seat 1 and is fixedly connected with a round tube sleeve 313. A sliding rod 317 is slidably connected to the inner wall of the round tube sleeve 313 on one side, and the sliding rod 317 is fixedly connected to the inner wall of the positioning seat 1. The inner wall of the round tube sleeve 313 on the other side is threadedly connected with a bidirectional screw 312. The bidirectional screw 312 is rotatably connected to the inner wall of the positioning seat 1, and the end of the bidirectional screw 312 penetrates to the outside of the positioning seat 1;

[0035] When the two clamping plates 315 are arranged to approach each other, they form a clamping effect on both sides of the instrument transformer body 2. Among them, the sliding seat 314 slides on the inner wall of the sliding groove 311, so that the clamping plate 315 will not easily change by a large angle, maintaining a good clamping and positioning effect on both sides of the instrument transformer body 2, and the support plate 316 can form an auxiliary supporting effect on the instrument transformer body 2. Among them, the round tube sleeve 313 can slide linearly on the surface of the sliding rod 317 to ensure that the clamping direction of the instrument transformer body 2 will not easily change. The end of the bidirectional screw 312 penetrates into a counterbore opened on the surface of the positioning seat 1. The operator can rotate the bidirectional screw 312 by using a tool, which will cause the bidirectional screw 312 to rotate inside the positioning seat 1. At the same time, since the adjacent round tube sleeve 313 will not rotate under the action of the sliding seat 314, and then under the action of the threaded connection between the round tube sleeve 313 and the bidirectional screw 312, the round tube sleeve 313 will move linearly along the surface of the bidirectional screw 312;

[0036] As Figure 2 、 Figure 4 and Figure 5As shown, the side support assembly 32 includes a soft film 325 disposed at the upper end of the support plate 316. The middle of the lower end of the soft film 325 is fixedly connected to the middle of the upper end of the support plate 316. A bellows 324 is fixedly connected to the lower end near the end of the soft film 325. A ventilation pipe 323 communicates with the surface of the bellows 324. The other end of the ventilation pipe 323 penetrates to the other side of the clamping plate 315, and the other end of the ventilation pipe 323 communicates with a pressure equalizing pipe 322. Both ends of the pressure equalizing pipe 322 are fixedly connected with a sealed cylinder 321. The pressure equalizing pipe 322 communicates with the sealed cylinder 321. The sealed cylinder 321 is embedded and installed inside the clamping plate 315. A piston 327 is slidably connected to the inner wall of the sealed cylinder 321. One side of the piston 327 close to the transformer body 2 is fixedly connected with an ejecting rod 326. One end of the ejecting rod 326 penetrates to the outside of the sealed cylinder 321;

[0037] When the clamping plate 315 approaches the surface of the transformer body 2, the ejecting rod 326 contacts the surface of the transformer body 2. At this time, the piston 327 is driven by the ejecting rod 326 to perform relative displacement on the inner wall of the sealed cylinder 321, and then the gas inside the sealed cylinder 321 will be injected into the pressure equalizing pipe 322. By injecting gas into the pressure equalizing pipe 322 through the sealed cylinder 321, the air pressure inside the two sealed cylinders 321 is kept balanced. By injecting gas into the ventilation pipe 323, the bellows 324 expands. Then, while the bellows 324 expands, the position of the soft film 325 near the end is pushed to approach the surface of the transformer body 2, so as to assist in supporting the transformer body 2 and at the same time form an auxiliary positioning effect on the surface of the transformer body 2.

[0038] When the present utility model is in use, the end of the bidirectional screw 312 penetrates into the counterbore formed on the surface of the positioning seat 1. The operator rotates the bidirectional screw 312 by using a tool. The bidirectional screw 312 rotates inside the positioning seat 1, so that the round tube sleeve 313 is threadedly connected to the bidirectional screw 312 and moves linearly along the surface of the bidirectional screw 312. When the two clamping plates 315 approach each other, they form a clamping effect on both sides of the transformer body 2, maintaining good clamping and positioning on both sides of the transformer body 2. When the clamping plate 315 approaches the surface of the transformer body 2, the ejecting rod 326 contacts the surface of the transformer body 2. The piston 327 is driven by the ejecting rod 326 to perform relative displacement on the inner wall of the sealed cylinder 321, and the gas inside the sealed cylinder 321 will be injected into the pressure equalizing pipe 322. The air pressure inside the two sealed cylinders 321 is kept balanced. Injecting gas into the ventilation pipe 323 causes the bellows 324 to expand, driving the position of the soft film 325 near the end to push against and approach the surface of the transformer body 2, so as to assist in supporting the transformer body 2 and at the same time form an auxiliary positioning on the surface of the transformer body 2.

[0039] It should be noted that, in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variant thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the said element.

[0040] Although the embodiments of the present utility model have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An instrument transformer calibration line tooling mechanism, characterized in that Comprising: A positioning seat (1) and a transformer body (2), the transformer body (2) is located above the positioning seat (1), and the lower end of the transformer body (2) extends into the positioning seat (1); A positioning mechanism (3), the positioning mechanism (3) includes a clamping assembly (31) arranged inside the positioning seat (1), the surface of the clamping assembly (31) extends to the outside of the positioning seat (1), and a side support assembly (32) is arranged on the surface of the clamping assembly (31), and the surface of the side support assembly (32) is in contact with the surface of the transformer body (2).

2. The tooling mechanism of a mutual inductor calibration line according to claim 1, wherein: The clamping assembly (31) includes two clamping plates (315) slidably connected to the upper end of the positioning seat (1), the two clamping plates (315) are respectively arranged on both sides of the transformer body (2), two sliding grooves (311) are opened at the upper end of the positioning seat (1), the lower ends of the clamping plates (315) are fixedly connected with two sliding seats (314), and the surface of the sliding seat (314) is slidably connected with the inner wall of the adjacent sliding groove (311), and a support plate (316) is fixedly connected between the sliding seats (314) on one side.

3. The tooling mechanism of a mutual inductor calibration line according to claim 2, characterized in that: The side support assembly (32) includes a soft rubber sheet (325) arranged at the upper end of the support plate (316), the middle part of the lower end of the soft rubber sheet (325) is fixedly connected with the middle part of the upper end of the support plate (316), a corrugated pipe (324) is fixedly connected to the lower end of the soft rubber sheet (325) near the end, a ventilation pipe (323) is communicated with the surface of the corrugated pipe (324), the other end of the ventilation pipe (323) penetrates to the other side of the clamping plate (315), and the other end of the ventilation pipe (323) is communicated with a pressure equalizing pipe (322).

4. The tooling mechanism of an instrument transformer calibration line according to claim 2, characterized in that: The lower end of the sliding seat (314) penetrates into the positioning seat (1) and is fixedly connected with a circular pipe sleeve (313), a sliding rod (317) is slidably connected to the inner wall of the circular pipe sleeve (313) on one side, and the sliding rod (317) is fixedly connected to the inner wall of the positioning seat (1).

5. The tooling mechanism of an instrument transformer calibration line according to claim 4, characterized in that: A bidirectional screw rod (312) is threadedly connected to the inner wall of the circular pipe sleeve (313) on the other side, the bidirectional screw rod (312) is rotatably connected to the inner wall of the positioning seat (1), and the end of the bidirectional screw rod (312) penetrates to the outside of the positioning seat (1).

6. The tooling mechanism of an instrument transformer calibration line according to claim 3, characterized in that: Both ends of the pressure equalizing pipe (322) are fixedly connected with a sealed cylinder (321), the pressure equalizing pipe (322) is communicated with the sealed cylinder (321), and the sealed cylinder (321) is embedded and installed inside the clamping plate (315).

7. The tooling mechanism of a mutual inductor calibration line according to claim 6, characterized in that: A piston (327) is slidably connected to the inner wall of the sealed cylinder (321), a pushing rod (326) is fixedly connected to the side of the piston (327) close to the transformer body (2), and one end of the pushing rod (326) penetrates to the outside of the sealed cylinder (321).

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