A fixture for machining instrument transformers

Abstract

This invention discloses a fixture for processing current transformers, relating to the field of current transformer processing technology. It includes a base and a current transformer body. A movable frame is rotatably connected to the top of the base. The fixture also includes a movable plate disposed on the top of the movable frame. Sliding strips are symmetrically installed on the bottom of the movable plate, and sliding grooves are symmetrically formed on both sides of the top of the movable frame. The sliding strips are slidably connected to the sliding grooves. A limiting ring is fixedly installed at the bottom of the movable frame, and an installation ring is fixedly installed on the top of the base. The top of the installation ring has an annular groove, and the limiting ring is slidably connected to the annular groove. This allows the orientation angle of the current transformer body to be adjusted after it is fixed, and the position of the current transformer body can be adjusted in a straight line. This facilitates the adjustment of the current transformer body's position and avoids the need to constantly adjust the fixed position of the current transformer body during cutting or other processing, improving practicality and convenience.

Description

Technical Field

[0001] This invention relates to the field of instrument transformer processing technology, specifically to a fixture for instrument transformer processing. Background Technology

[0002] Instrument transformers, also known as instrument transformers, are a general term for current transformers and voltage transformers. They can transform high voltage into low voltage and large current into small current, and are used in measurement or protection systems.

[0003] For example, the open-type current transformer cutting fixture with announcement number CN212794077U uses a hydraulic cylinder on a fixed plate to drive two arc-shaped clamping blocks in conjunction with a polyurethane rubber buffer block to clamp and fix the current transformer, replacing manual clamping and fixing of the current transformer and reducing safety hazards. The rotating wheel drives the connecting rod and rotating rod to rotate, causing the rotating rod to rotate the current transformer clamped on the fixed plate, facilitating adjustment of the cutting angle according to actual needs. However, in actual use, there is no limit stop after the rotating rod rotates, which may cause the current transformer clamped on the fixed plate to rotate during processing, affecting processing accuracy. Furthermore, only the orientation angle of the transformer can be adjusted; when the transformer needs to be adjusted to a straight line position during processing, the fixed position of the transformer body must be readjusted, which is inconvenient and reduces the processing efficiency of the transformer, exhibiting certain defects in use.

[0004] Therefore, we propose a fixture for the processing of current transformers to solve the problems mentioned above. Summary of the Invention

[0005] The purpose of this invention is to provide a fixture for machining current transformers, which solves the problems mentioned in the background art, such as the lack of a limit switch after the rotating rod rotates, which causes the current transformer clamped on the fixed plate to rotate during machining, affecting the machining accuracy; and the fact that only the orientation angle of the current transformer can be adjusted, and when the linear position of the current transformer needs to be adjusted during machining, the fixed position of the current transformer body must be readjusted, which is inconvenient to use and reduces the machining efficiency of the current transformer.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixture for processing current transformers, comprising a base and a current transformer body, wherein a movable frame is rotatably connected to the top of the base;

[0007] Also includes:

[0008] A movable plate is set on the top of the movable frame. Sliding strips are symmetrically installed on the bottom of the movable plate, and sliding grooves are symmetrically opened on both sides of the top of the movable frame. The sliding strips are slidably connected to the sliding grooves. At the same time, a limit ring is fixedly installed on the bottom of the movable frame, and an installation ring is fixedly installed on the top of the base. The top of the installation ring is opened with an annular groove, and the limit ring is slidably connected to the annular groove.

[0009] A positioning component is provided on one side of the movable frame, both inside and outside. The positioning component includes a fixed frame.

[0010] Fixed components are symmetrically arranged on the top of the movable panel;

[0011] Fixed frames are symmetrically installed on the lower side of the outer side of the movable frame. The two fixed frames are internally slidably connected with limit rods, and a telescopic spring is sleeved on the outer side of the limit rod. One end of the telescopic spring is fixedly connected to the fixed frame below, while the other end of the telescopic spring is fixedly installed with a connecting block, and the connecting block is fixedly connected to the limit rod.

[0012] Several limiting grooves are formed on the top of the base. The limiting rod is engaged with the limiting groove. On one side of the movable frame, above the limiting rod, there are symmetrical mounting brackets. A rotating shaft is rotatably connected between two mounting brackets. At the same time, a rotating rod is fixedly installed on the outer side of the rotating shaft.

[0013] Preferably, one end of the rotating shaft passes through a mounting bracket on one side and is fixedly mounted with a cam, and a movable sleeve is fitted on the outer side of the rotating rod, and the top of the limiting rod is hinged to the movable sleeve.

[0014] By adopting the above technical solution, the rotation of the rotating rod can lift the limiting rod.

[0015] Preferably, a movable rod is slidably connected to the upper interior of the movable frame, and push blocks are fixedly installed at both ends of the movable rod, with one push block slidably connected to a cam.

[0016] By adopting the above technical solution, the rotating rod can push the movable rod to move while rotating.

[0017] Preferably, a support frame is symmetrically installed on the inner side of the movable frame above the movable rod, and a positioning rod is slidably connected inside the two support frames. A return spring is sleeved on the outer side of the positioning rod. One end of the return spring is fixedly connected to the support frame, and a fixing ring is fixedly installed on the other end of the return spring. The fixing ring is fixedly connected to the positioning rod.

[0018] By adopting the above technical solution, the positioning rod can automatically reset after it moves, which facilitates the positioning of the movable plate.

[0019] Preferably, the bottom of the movable plate is symmetrically provided with several sets of positioning grooves, and the two positioning rods are respectively engaged and connected with several sets of positioning grooves.

[0020] By adopting the above technical solution, the position of the movable plate can be moved, and the movable plate can be positioned after its position is adjusted.

[0021] Preferably, a column rod is fixedly installed on the lower side of one side of each of the two positioning rods, and a mounting plate is symmetrically installed on one side of the movable rod. A movable groove is opened on one side of each of the two mounting plates, and the column rod is slidably connected to the movable groove.

[0022] By adopting the above technical solution, the movement of the movable rod can drive the limit rod to move.

[0023] Preferably, the fixing component includes a positioning plate symmetrically mounted on the top of the movable plate, and a movable frame is slidably connected inside the positioning plate. A clamping plate is fixedly mounted on one side of the movable frame, and rubber pads are fixedly mounted on the sides of the two clamping plates that are close to each other. A threaded rod is rotatably connected to the sides of the two clamping plates that are far apart from each other, and the threaded rod is threadedly connected to the positioning plate and rotatably connected to the movable frame.

[0024] By adopting the above technical solution, the two clamps can fix the transformer body.

[0025] Preferably, one end of the threaded rod passes through the movable frame and is fixedly mounted with a rotating block. A U-shaped frame is fixedly mounted on one side of the rotating block, and positioning blocks are symmetrically mounted on both sides of the rotating block. Simultaneously, a moving rod is slidably connected inside the positioning block, and a pull plate is fixedly mounted on one end of each of the two moving rods. A through groove is symmetrically opened on both sides of the U-shaped frame, and the pull plate is slidably connected to the through groove. At the same time, several slots are opened on the side of the movable frame near the rotating block, and the moving rod is engaged with the slot. A tension spring is sleeved on the outer side of each of the two moving rods, and one end of the tension spring is fixedly connected to the positioning block. Simultaneously, a connecting ring is fixedly mounted on the other end of the tension spring, and the connecting ring is fixedly connected to the moving rod.

[0026] By adopting the above technical solution, the U-shaped frame can be limited to prevent the threaded rod from rotating unexpectedly during processing, thus preventing the transformer body from detaching.

[0027] Compared with the prior art, the beneficial effects of the present invention are: the fixture for processing current transformers has positioning components set on the inside and outside of the movable frame, so that the orientation angle of the current transformer body can be adjusted after the current transformer body is fixed, and the position of the current transformer body can be adjusted in a straight line, which facilitates the adjustment of the position of the current transformer body and avoids the need to constantly adjust the fixed position of the current transformer body during cutting or other processing, thus improving practicality and convenience.

[0028] 1. Positioning components are installed on both the inside and outside of the movable frame. During the processing of the current transformer body, it is fixed using these components. When adjusting the orientation angle of the current transformer body, the rotating rod is rotated upwards. This rotation lifts the movable sleeve, allowing it to slide on the rotating rod. The rotation of the rotating rod can also be achieved by adding an electric actuator. After the movable sleeve is lifted, it pulls the limiting rod to slide on the fixed frame and stretches the telescopic spring, causing the limiting rod to disengage from the limiting groove on the base. This allows the movable frame to lose its limiting position. The orientation angle of the current transformer body can be adjusted by rotating the movable frame. After adjustment, the limiting rod is aligned with another limiting groove. Then, the rotating rod can be released, and under the action of the telescopic spring, the limiting rod can be engaged with another limiting groove. This allows the movable frame to be positioned after the orientation angle of the movable frame is adjusted. The telescopic spring is in a stretched state, and the limiting rod is not easy to move. This ensures that the limiting rod is not easily moved, which makes it convenient for users to adjust the orientation angle of the current transformer body. After adjustment, it is easy to position the movable frame and avoid the current transformer body from shifting during subsequent processing.

[0029] 2. During rotation, the rotating rod drives the rotating shaft to rotate on the mounting bracket. After the rotating shaft rotates, it drives the cam to rotate clockwise. After the cam rotates clockwise, it pushes a push block on one side to move. The movement of the push block drives the movable rod to move. The movement of the movable rod drives the mounting plate to move simultaneously. After the mounting plate moves, it slides down the positioning rod through the movable groove and the column rod, allowing the positioning rod to stretch the return spring and disengage from the positioning groove on the movable plate. This causes the movable plate to lose its limit and can be moved to adjust the position of the current transformer body in a straight line. During the movement of the movable plate, the sliding bar slides in the sliding groove. After the position of the movable plate is adjusted, the positioning rod disengages from the other positioning groove. Through the reset of the rotating rod, the positioning rod can be reset under the action of the return spring. After the positioning rod is reset, it engages with the positioning groove, allowing the movable plate to be positioned. Thus, while adjusting the orientation angle of the current transformer body, the position of the current transformer body in a straight line can also be adjusted, avoiding the need to readjust the fixed position of the current transformer body and making it convenient for operators to use.

[0030] 3. After fixing the current transformer body, place it on top of the movable plate between the two clamping plates. Pull the pull plate and rotate the U-shaped frame. As the pull plate moves, it causes the moving rod to slide on the positioning block, which also stretches the tension spring. This causes the moving rod to disengage from the slot on one side of the moving frame, allowing the U-shaped frame to lose its limit. The rotating block drives the threaded rod to rotate. After the threaded rod rotates, it can drive the moving frame to move through the threaded connection with the positioning plate. After the moving frame moves, the two clamping plates move closer together, causing the rubber pads on the clamping plates to adhere to the current transformer body and fix the current transformer body. After the current transformer body is fixed, the pull plate can be released. Under the action of the tension spring, the moving rod returns to its original position. If the moving rod is not aligned with the other slot, continue to rotate the U-shaped frame to move the two clamping plates closer together and compress the rubber pads, so that the moving rod is aligned with the adjacent slot. Under the action of the tension spring, the moving rod inserts into the slot, which can limit the U-shaped frame and prevent the threaded rod from rotating accidentally during processing, thus preventing the current transformer body from detaching and improving the reliability of the current transformer body fixing. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0032] Figure 2 This is a three-dimensional structural diagram of the entire invention from another perspective;

[0033] Figure 3 This is a cross-sectional perspective view of the three-dimensional structure of the movable frame of the present invention;

[0034] Figure 4 For the present invention Figure 3 Enlarged structural diagram of region A in the middle;

[0035] Figure 5 For the present invention Figure 1 Enlarged structural diagram of region B in the middle;

[0036] Figure 6 For the present invention Figure 2 Enlarged structural diagram of region C in the middle;

[0037] Figure 7 This is a three-dimensional structural diagram of the mounting plate of the present invention;

[0038] Figure 8 This is a schematic diagram of the fixed component structure of the present invention;

[0039] Figure 9 For the present invention Figure 8 A magnified schematic diagram of the D region.

[0040] In the diagram: 1. Base; 101. Movable frame; 102. Movable plate; 103. Sliding groove; 104. Sliding bar; 105. Limiting ring; 106. Mounting ring; 2. Positioning assembly; 201. Fixed frame; 202. Limiting rod; 203. Telescopic spring; 204. Connecting block; 205. Limiting groove; 206. Mounting frame; 207. Rotating shaft; 208. Rotating rod; 209. Movable sleeve; 210. Cam; 211. Movable rod; 212. Push block; 213. Support frame 214. Positioning rod; 215. Return spring; 216. Fixing ring; 217. Positioning groove; 218. Mounting plate; 219. Column rod; 220. Movable groove; 3. Fixing assembly; 301. Positioning plate; 302. Moving frame; 303. Threaded rod; 304. Clamping plate; 305. Rotating block; 306. U-shaped frame; 307. Positioning block; 308. Moving rod; 309. Pull plate; 310. Slot; 311. Tension spring; 312. Connecting ring; 4. Current transformer body. Detailed Implementation

[0041] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0042] Please see Figures 1-9 The present invention provides a technical solution: a fixture for processing current transformers, including a base 1 and a current transformer body 4, wherein a movable frame 101 is rotatably connected to the top of the base 1;

[0043] Also includes:

[0044] A movable plate 102 is set on the top of the movable frame 101. Sliding strips 104 are symmetrically installed on the bottom of the movable plate 102. Sliding grooves 103 are symmetrically opened on both sides of the top of the movable frame 101. The sliding strips 104 are slidably connected to the sliding grooves 103. Meanwhile, a limiting ring 105 is fixedly installed on the bottom of the movable frame 101. An installation ring 106 is fixedly installed on the top of the base 1. An annular groove is opened on the top of the installation ring 106. The limiting ring 105 is slidably connected to the annular groove.

[0045] Positioning component 2 is disposed inside and on one side of the movable frame 101. Positioning component 2 includes fixed frame 201.

[0046] Fixed brackets 201 are symmetrically installed on the lower side of the outer side of the movable bracket 101. The two fixed brackets 201 are internally slidably connected to limit rods 202, and a telescopic spring 203 is sleeved on the outer side of the limit rod 202. One end of the telescopic spring 203 is fixedly connected to the fixed bracket 201 below, and the other end of the telescopic spring 203 is fixedly installed with a connecting block 204, and the connecting block 204 is fixedly connected to the limit rod 202.

[0047] The limiting groove 205 is formed on the top of the base 1 in several ways. The limiting rod 202 is engaged with the limiting groove 205. The movable frame 101 is symmetrically mounted on one side above the limiting rod 202, and the two mounting frames 206 are rotatably connected to the rotating shaft 207. At the same time, the rotating rod 208 is fixedly mounted on the outer side of the rotating shaft 207.

[0048] One end of the rotating shaft 207 passes through the mounting bracket 206 on one side and is fixedly mounted with a cam 210. A movable sleeve 209 is sleeved on the outer side of the rotating rod 208, and the top end of the limiting rod 202 is hinged to the movable sleeve 209.

[0049] Example 1: As Figures 1-3 and Figure 5 As shown, positioning components 2 are provided on both the inside and outside sides of the movable frame 101. During the processing of the current transformer body 4, it is fixed by the fixing component 3. When adjusting the orientation angle of the current transformer body 4, the rotating rod 208 is rotated upwards. After the rotating rod 208 rotates, the movable sleeve 209 can be lifted upwards. Simultaneously, the movable sleeve 209 can slide on the rotating rod 208. The rotation of the rotating rod 208 can also be achieved by adding an electric push rod. After the movable sleeve 209 is lifted, it can pull the limiting rod 202 to slide on the fixed frame 201 and stretch the telescopic spring 203, causing the limiting rod 202 to disengage from the limiting groove 205 on the base 1, allowing the movable frame 101 to disengage. After the limit is set, the movable frame 101 can be rotated to adjust the orientation angle of the current transformer body 4. After adjustment, the limit rod 202 is aligned with another limit groove 205. Then the rotating rod 208 can be released. Under the action of the telescopic spring 203, the limit rod 202 can be engaged with the other limit groove 205. This allows the movable frame 101 to be positioned after the orientation angle of the movable frame 101 is adjusted. The telescopic spring 203 is in a stretched state, and the limit rod 202 is not easy to move. This ensures that the limit rod 202 is not easy to move, which facilitates the user to adjust the orientation angle of the current transformer body 4. After adjustment, it is convenient to position the movable frame 101 and avoid the current transformer body 4 from shifting during subsequent processing.

[0050] A movable rod 211 is slidably connected to the upper part of the movable frame 101, and push blocks 212 are fixedly installed at both ends of the movable rod 211, and one push block 212 is slidably connected to the cam 210.

[0051] A support frame 213 is symmetrically installed on the inner side of the movable frame 101 above the movable rod 211. A positioning rod 214 is slidably connected inside both support frames 213. A return spring 215 is sleeved on the outer side of the positioning rod 214. One end of the return spring 215 is fixedly connected to the support frame 213, and a fixing ring 216 is fixedly installed on the other end of the return spring 215. The fixing ring 216 is fixedly connected to the positioning rod 214.

[0052] The bottom of the movable plate 102 is symmetrically provided with several sets of positioning grooves 217, and the two positioning rods 214 are respectively engaged and connected with several sets of positioning grooves 217.

[0053] A column rod 219 is fixedly installed on one side of each of the two positioning rods 214, and an installation plate 218 is symmetrically installed on one side of the movable rod 211. A movable groove 220 is opened on one side of each of the two installation plates 218, and the column rod 219 is slidably connected to the movable groove 220.

[0054] Example 2: Figures 1-7 As shown, during the rotation of the rotating rod 208, it drives the rotating shaft 207 to rotate on the mounting bracket 206. After the rotating shaft 207 rotates, it drives the cam 210 to rotate clockwise. After the cam 210 rotates clockwise, it pushes the push block 212 on one side to move. The movement of the push block 212 drives the movable rod 211 to move. At the same time, the movement of the movable rod 211 drives the mounting plate 218 to move. After the mounting plate 218 moves, it slides through the movable groove 220 and the column rod 219, which can push the positioning rod 214 downward to move. This allows the positioning rod 214 to stretch the return spring 215, causing the positioning rod 214 to disengage from the positioning groove 217 on the movable plate 102. Then, the movable plate 102... When the limit is lost, the movable plate 102 can be moved to adjust the position of the current transformer body 4 in a straight line. During the movement of the movable plate 102, the sliding bar 104 slides in the sliding groove 103. After the position of the movable plate 102 is adjusted, the positioning rod 214 disengages from the other positioning groove 217. By resetting the rotating rod 208, the positioning rod 214 can be reset under the action of the reset spring 215. After the positioning rod 214 is reset, it engages with the positioning groove 217, so that the movable plate 102 can be positioned. Thus, while adjusting the orientation angle of the current transformer body 4, the position of the current transformer body 4 in a straight line can be adjusted, avoiding the need to readjust the fixed position of the current transformer body 4, which is convenient for the staff to use.

[0055] Fixed components 3 are symmetrically arranged on the top of the movable plate 102;

[0056] The fixing component 3 includes a positioning plate 301 symmetrically mounted on the top of the movable plate 102, and a movable frame 302 is slidably connected inside the positioning plate 301. A clamping plate 304 is fixedly mounted on one side of the movable frame 302. Rubber pads are fixedly mounted on the sides of the two clamping plates 304 that are close to each other. Threaded rods 303 are rotatably connected to the sides of the two clamping plates 304 that are far apart from each other. The threaded rods 303 are threadedly connected to the positioning plate 301 and rotatably connected to the movable frame 302.

[0057] One end of the threaded rod 303 passes through the movable frame 302 and is fixedly installed with a rotating block 305. A U-shaped frame 306 is fixedly installed on one side of the rotating block 305, and positioning blocks 307 are symmetrically installed on both sides of the rotating block 305. Meanwhile, a moving rod 308 is slidably connected inside the positioning block 307. A pull plate 309 is fixedly installed at one end of each of the two moving rods 308. A through groove is symmetrically opened on both sides of the U-shaped frame 306, and the pull plate 309 is slidably connected to the through groove. Meanwhile, several slots 310 are opened on the side of the movable frame 302 near the rotating block 305, and the moving rods 308 are engaged with the slots 310. A tension spring 311 is sleeved on the outer side of each of the two moving rods 308. One end of the tension spring 311 is fixedly connected to the positioning block 307, and a connecting ring 312 is fixedly installed at the other end of the tension spring 311. The connecting ring 312 is fixedly connected to the moving rod 308.

[0058] Example 3: Figures 1-2 and Figures 8-9As shown, after fixing the current transformer body 4, the current transformer body 4 is placed on top of the movable plate 102 between the two clamping plates 304. Pulling the pull plate 309 and rotating the U-shaped frame 306 causes the pull plate 309 to move, which in turn drives the moving rod 308 to slide on the positioning block 307 and stretches the tension spring 311. This causes the moving rod 308 to disengage from the slot 310 on one side of the moving frame 302, causing the U-shaped frame 306 to lose its limit. The rotating block 305 drives the threaded rod 303 to rotate. After the threaded rod 303 rotates, it can drive the moving frame 302 to move through the threaded connection with the positioning plate 301. After the moving frame 302 moves, the two clamping plates 304 move closer to each other, causing the clamping plates 304 to move closer together. The rubber pad on 04 is attached to the transformer body 4 to fix the transformer body 4. After the transformer body 4 is fixed, the pull plate 309 can be released. Under the action of the tension spring 311, the moving rod 308 is reset. If the moving rod 308 is not aligned with the other slot 310, the U-shaped frame 306 is rotated to drive the two clamping plates 304 to move closer to each other and compress the rubber pad, so that the moving rod 308 is aligned with the adjacent slot 310. Under the action of the tension spring 311, the moving rod 308 is inserted into the slot 310, so that the U-shaped frame 306 can be limited, avoiding the threaded rod 303 from rotating accidentally during the processing, avoiding the transformer body 4 from falling off, and improving the reliability of the transformer body 4 fixation.

[0059] Working principle: When using this fixture for transformer machining, firstly, according to... Figures 1-9As shown, positioning components 2 are provided on the inside and outside of the movable frame 101. When processing the current transformer body 4, after fixing the current transformer body 4, the current transformer body 4 is placed on top of the movable plate 102 between the two clamping plates 304. Pulling the pull plate 309 and rotating the U-shaped frame 306 causes the pull plate 309 to move, which in turn drives the moving rod 308 to slide on the positioning block 307 and can stretch the tension spring 311, causing the moving rod 308 to disengage from the slot 310 on one side of the movable frame 302, so that the U-shaped frame 306 loses its limit. The rotating block 305 drives the threaded rod 303 to rotate. After the threaded rod 303 rotates, it interacts with the positioning plate 301. The threaded connection allows the movable frame 302 to move. After the movable frame 302 moves, the two clamping plates 304 move closer together, causing the rubber pads on the clamping plates 304 to adhere to the transformer body 4 and fix the transformer body 4. After the transformer body 4 is fixed, the pull plate 309 can be released, and the movable rod 308 returns to its original position under the action of the tension spring 311. If the movable rod 308 is not aligned with the other slot 310, the U-shaped frame 306 is rotated further to move the two clamping plates 304 closer together and compress the rubber pads, so that the movable rod 308 is aligned with the adjacent slot 310. Under the action of the tension spring 311, the movable rod 308 is inserted into the slot 310, allowing the U-shaped frame to be aligned. The frame 306 is used for limiting the movement of the threaded rod 303 during processing to prevent accidental rotation and detachment of the transformer body 4, thus improving the reliability of the transformer body 4. When adjusting the orientation angle of the transformer body 4, the rotating rod 208 is rotated upwards. This rotation lifts the movable sleeve 209, allowing it to slide on the rotating rod 208. The rotation of the rotating rod 208 can also be achieved by adding an electric actuator. After the movable sleeve 209 is lifted, it pulls the limiting rod 202 to slide on the fixed frame 201 and stretches the telescopic spring 203, causing the limiting rod 202 to contact the base 1. The limiting groove 205 is disengaged, allowing the movable frame 101 to lose its limiting position. Then, the movable frame 101 can be rotated to adjust the orientation angle of the current transformer body 4. After adjustment, the limiting rod 202 is aligned with the other limiting groove 205. Then, the rotating rod 208 can be released. Under the action of the telescopic spring 203, the limiting rod 202 can be engaged with the other limiting groove 205. This allows the movable frame 101 to be positioned after the orientation angle of the movable frame 101 is adjusted. The telescopic spring 203 is in a stretched state, making it difficult for the limiting rod 202 to move easily. This ensures that the limiting rod 202 is not easily moved, thus facilitating the user to adjust the orientation angle of the current transformer body 4.

[0060] During rotation, the rotating rod 208 drives the rotating shaft 207 to rotate on the mounting bracket 206. After the rotating shaft 207 rotates, it drives the cam 210 to rotate clockwise. After the cam 210 rotates clockwise, it pushes the push block 212 on one side to move. The movement of the push block 212 drives the movable rod 211 to move. At the same time, the movement of the movable rod 211 drives the mounting plate 218 to move. After the mounting plate 218 moves, it slides through the movable groove 220 and the column rod 219, which can push the positioning rod 214 downward to move. This allows the positioning rod 214 to stretch the return spring 215, so that the positioning rod 214 disengages from the positioning groove 217 on the movable plate 102. After the movable plate 102 is removed, it loses its limit and can be moved to adjust the position of the current transformer body 4 in a straight line. During the movement of the movable plate 102, the sliding bar 104 slides in the sliding groove 103. After the position of the movable plate 102 is adjusted, the positioning rod 214 is disengaged from the other positioning groove 217. By resetting the rotating rod 208, the positioning rod 214 can be reset under the action of the reset spring 215. After the positioning rod 214 is reset, it engages with the positioning groove 217, so that the movable plate 102 can be positioned. Thus, while adjusting the orientation angle of the current transformer body 4, the position of the current transformer body 4 in a straight line can also be adjusted.

[0061] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0062] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A fixture for processing current transformers, comprising a base (1) and a current transformer body (4), wherein a movable frame (101) is rotatably connected to the top of the base (1). Its features are, Also includes: A movable plate (102) is set on the top of the movable frame (101). Sliding strips (104) are symmetrically installed on the bottom of the movable plate (102). Sliding grooves (103) are symmetrically opened on both sides of the top of the movable frame (101). The sliding strips (104) are slidably connected to the sliding grooves (103). Meanwhile, a limiting ring (105) is fixedly installed on the bottom of the movable frame (101). An installation ring (106) is fixedly installed on the top of the base (1). An annular groove is opened on the top of the installation ring (106). The limiting ring (105) is slidably connected to the annular groove. The positioning component (2) is disposed inside and on one side of the movable frame (101), and the positioning component (2) includes a fixed frame (201). Fixed components (3) are symmetrically arranged on the top of the movable plate (102); A fixed frame (201) is symmetrically installed below the outside of the movable frame (101). The two fixed frames (201) are internally connected to a limit rod (202), and a telescopic spring (203) is sleeved on the outside of the limit rod (202). One end of the telescopic spring (203) is fixedly connected to the fixed frame (201), and the other end of the telescopic spring (203) is fixedly installed with a connecting block (204). The connecting block (204) is fixedly connected to the limit rod (202). A plurality of limiting grooves (205) are formed on the top of the base (1). The limiting rod (202) is engaged with the limiting groove (205). The movable frame (101) is symmetrically mounted with mounting brackets (206) above the limiting rod (202) on one side. A rotating shaft (207) is rotatably connected between the two mounting brackets (206). At the same time, a rotating rod (208) is fixedly mounted on the outer side of the rotating shaft (207).

2. The fixture for machining instrument transformers according to claim 1, characterized in that: One end of the rotating shaft (207) passes through a side mounting bracket (206) and is fixedly mounted with a cam (210), and a movable sleeve (209) is sleeved on the outer side of the rotating rod (208), and the top end of the limiting rod (202) is hinged to the movable sleeve (209).

3. The fixture for machining instrument transformers according to claim 2, characterized in that: The movable frame (101) is slidably connected to the upper interior of a movable rod (211), and push blocks (212) are fixedly installed at both ends of the movable rod (211), and one side of the push block (212) is slidably connected to a cam (210).

4. The fixture for machining instrument transformers according to claim 3, characterized in that: The inner side of the movable frame (101) is symmetrically equipped with support frames (213) above the movable rod (211), and the two support frames (213) are slidably connected with positioning rods (214). A return spring (215) is sleeved on the outer side of the positioning rod (214). At the same time, one end of the return spring (215) is fixedly connected to the support frame (213), and the other end of the return spring (215) is fixedly installed with a fixing ring (216), and the fixing ring (216) is fixedly connected to the positioning rod (214).

5. A fixture for machining instrument transformers according to claim 4, characterized in that: The bottom of the movable plate (102) is symmetrically provided with several sets of positioning grooves (217), and the two positioning rods (214) are respectively engaged and connected with the several sets of positioning grooves (217).

6. A fixture for machining instrument transformers according to claim 4, characterized in that: A column rod (219) is fixedly installed on one side of each of the two positioning rods (214), and an installation plate (218) is symmetrically installed on one side of the movable rod (211). An movable groove (220) is opened on one side of each of the two installation plates (218), and the column rod (219) is slidably connected to the movable groove (220).

7. A fixture for machining instrument transformers according to claim 1, characterized in that: The fixing component (3) includes a positioning plate (301) symmetrically mounted on the top of the movable plate (102), and a movable frame (302) is slidably connected inside the positioning plate (301). A clamping plate (304) is fixedly mounted on one side of the movable frame (302). Rubber pads are fixedly mounted on the sides of the two clamping plates (304) that are close to each other. Threaded rods (303) are rotatably connected to the sides of the two clamping plates (304) that are far apart from each other. The threaded rods (303) are threadedly connected to the positioning plate (301) and rotatably connected to the movable frame (302).

8. A fixture for machining instrument transformers according to claim 7, characterized in that: One end of the threaded rod (303) passes through the movable frame (302) and is fixedly mounted with a rotating block (305). A U-shaped frame (306) is fixedly mounted on one side of the rotating block (305), and positioning blocks (307) are symmetrically mounted on both sides of the rotating block (305). Meanwhile, a moving rod (308) is slidably connected inside the positioning block (307), and a pull plate (309) is fixedly mounted on one end of each of the two moving rods (308). A through slot is symmetrically opened on both sides of the U-shaped frame (306), and the pull plate (309) is connected to the through slot. The groove is slidably connected, and the movable frame (302) has several slots (310) on the side near the rotating block (305). The movable rod (308) is engaged with the slots (310), and a tension spring (311) is sleeved on the outer side of each of the two movable rods (308). One end of the tension spring (311) is fixedly connected to the positioning block (307), and a connecting ring (312) is fixedly installed on the other end of the tension spring (311). The connecting ring (312) is fixedly connected to the movable rod (308).

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