Voltage transformer positioning tool

Abstract

The invention provides a voltage transformer positioning tool, and relates to the technical field of positioning tools, the voltage transformer positioning tool comprises a positioning mechanism and a driving assembly which are arranged on a lifting platform, and the positioning mechanism comprises a base, a clamping plate and a driving part; a sliding plate is arranged below the base, a limiting groove is formed in the sliding plate, an adjusting block is arranged in the limiting groove in a sliding mode, the base is rotationally connected to the adjusting block, and a first reset spring is connected between the adjusting block and the base; second reset springs are connected between the two sides, in the sliding direction, of the adjusting block and the limiting grooves. According to the positioning mechanism, the voltage transformer can be clamped and centered on the base, the base can deflect and slide, butt joint of an outer cone plug of the voltage transformer and an inner cone of a mounting flange is facilitated, the frequency of adjusting the voltage transformer is reduced, and the mounting efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of positioning tooling, and in particular to a voltage transformer positioning tooling. Background Art

[0002] A voltage transformer is an instrument used to transform voltage. The purpose of voltage transformer transformation is to power measuring instruments and relay protection devices. A plug-in voltage transformer is a voltage transformer with a plug-in connection interface, which is easy to install and remove.

[0003] In the process of installing a plug-in voltage transformer into a power distribution cabinet, the prior art usually places the voltage transformer on a lifting bracket first, then evenly applies insulating grease to the outer cone plug of the plug-in voltage transformer and the inner cone of the mounting flange in the power distribution cabinet, and then puts the exhaust belt into the inner cone. By adjusting the position of the bracket, the outer cone and the inner cone are made concentric, and then the voltage transformer is slowly pushed into a certain depth, and then the exhaust belt is pulled out. Finally, after the voltage transformer is completely inserted into the inner cone, the end face flange of the voltage transformer is fixed to the mounting flange by bolts. The setting of the exhaust belt can exhaust the air between the inner cone and the outer cone plug, reducing the phenomenon that the internal pressure of the voltage transformer is unbalanced due to residual air, which affects its performance and life.

[0004] The patent application document with publication number CN116214401A discloses a voltage transformer positioning tool. The voltage transformer body is placed on a base between two clamping hoops. The driving cylinder pushes the moving cross bar to move. When the moving cross bar moves, the two first sliding sleeves are driven to move inward at the same time through the two first transmission rods. When the two first sliding sleeves move, the two first sliding blocks are driven to slide inward at the same time inside the first sliding groove through the two second transmission rods. When the two first sliding blocks move, they simultaneously drive the two clamping hoops to clamp and fix the voltage transformer body.

[0005] This positioning tool can position the voltage transformer, but when installing the voltage transformer, it is necessary to drive the base to rise and fall through the lifting platform to realize the lifting of the voltage transformer, so that the outer cone plug of the voltage transformer is inserted into the inner cone of the mounting flange in the distribution cabinet. Since the position of the lifting platform will be offset or tilted, after the voltage transformer is centered on the lifting platform, the axis of the outer cone plug of the voltage transformer will not coincide with the inner cone axis of the mounting flange. It is still necessary to adjust the position of the voltage transformer multiple times to make the outer cone plug of the voltage transformer inserted into the inner cone of the mounting flange in the distribution cabinet, and the installation efficiency is low. Summary of the invention

[0006] In view of this, the present invention provides a voltage transformer positioning tool to solve the technical problem that during the installation of a plug-in voltage transformer in a power distribution cabinet, the position of the voltage transformer needs to be adjusted multiple times, thereby affecting the installation efficiency.

[0007] In order to solve the above technical problems, the present invention provides a voltage transformer positioning tool, comprising a positioning mechanism and a driving assembly arranged on a lifting platform, wherein the positioning mechanism comprises a base slidably arranged on the lifting platform and used to carry the voltage transformer, a clamping plate arranged on the base and capable of clamping the voltage transformer, and a driving member driving the two clamping plates to move closer to or away from each other; the driving assembly drives the base to move so that the outer cone plug of the voltage transformer is butted against the inner cone of the mounting flange; An air passage is provided in the clamping plate, a clamping piece capable of clamping the mounting flange is slidably connected in the air passage, a positioning plate capable of abutting against the flange surface of the mounting flange is installed on the clamping piece, a slide plate is provided below the base, a limiting groove is provided on the slide plate, an adjusting block is slidably provided in the limiting groove, the base is rotatably connected to the adjusting block, and a reset spring 1 is connected between the adjusting block and the base; The sliding direction of the adjusting block is perpendicular to the sliding direction of the base, and two return springs are connected between the two sides of the adjusting block along the sliding direction and the limiting groove.

[0008] By adopting the above technical scheme, the voltage transformer is placed on the base, and ventilation in the airway causes the clamping member to move toward the side of the inner cone close to the mounting flange. The driving assembly drives the base to move so that the positioning plate approaches the mounting flange, and the base drives the voltage transformer to deflect relative to the adjustment block until both positioning plates abut against the flange surface, which is conducive to achieving parallelism between the axis of the outer cone plug of the voltage transformer and the axis of the inner cone of the mounting flange; in the process of the driving member driving the clamping plates to approach each other to achieve clamping of the voltage transformer, the adjustment block can drive the base to slide, thereby causing the voltage transformer to slide, which is conducive to achieving coincidence between the axis of the outer cone plug of the voltage transformer and the axis of the inner cone of the mounting flange, reducing the number of adjustments to the voltage transformer and improving installation efficiency.

[0009] Preferably, suction cups capable of fixing the two sides of the voltage transformer are provided on both sides of the clamping plate, and vents capable of communicating with the suction cups are installed on the clamping plate.

[0010] By adopting the above technical solution, air is sucked into the vent, and the suction cup adsorbs and fixes the two sides of the voltage transformer, which is conducive to achieving the stability of the fixation of the irregular voltage transformer.

[0011] Preferably, the clamping member comprises a sliding rod slidably mounted in the air passage and a clamp fixedly connected to the end of the sliding rod and capable of clamping the mounting flange, and the positioning plate is fixedly mounted on the clamp.

[0012] By adopting the above technical solution, ventilation is allowed in the airway, the slide rod moves toward the side close to the mounting flange, the chuck clamps both sides of the mounting flange, and the clamp can clamp to both sides of the voltage transformer, which is conducive to aligning the axis of the inner cone of the mounting flange with the axis of the outer cone plug of the voltage transformer, thereby facilitating the docking of the outer cone plug of the voltage transformer with the inner cone of the mounting flange.

[0013] Preferably, a fixing plate is vertically installed above the base, an exhaust belt that can be inserted into the inner cone of the mounting flange is fixedly installed at the end of the positioning plate, a lock buckle is connected between the clamp and the clamp, two slide grooves are provided on the base, both of which include a horizontal groove and a vertical groove, and a sliding block that can slide in the slide groove is provided below the clamp; The sliding block slides in the horizontal groove to enable the clamping plate to clamp the voltage transformer, and the sliding block slides in the vertical groove to drive the clamping piece to move and pull out the exhaust belt.

[0014] By adopting the above technical solution, the exhaust belt is placed in the inner cone, and after the outer cone plug of the voltage transformer is docked with the inner cone of the mounting flange, the lock is locked, and the driving member drives the clamps to move away from each other so that the sliding block slides into the vertical groove, and the clamp is pulled to drive the clamp to move, so as to pull out the exhaust belt. Due to the limitation of the fixed plate, the voltage transformer will not be pulled out during the process of pulling out the exhaust belt, which solves the technical problem that it is difficult to pull the exhaust belt out from the inner cone due to the blind spots and dead angles of vision, and improves the installation efficiency.

[0015] Preferably, the driving member includes a screw rod connected to the clamping plate through a thread and a driving motor driving the screw rod to rotate; the two screw rods are connected to the two clamping plates in a one-to-one correspondence, and the rotation directions of the threads on the two screw rods are opposite.

[0016] By adopting the above technical solution, the driving motor drives the screw to rotate, thereby driving the two clamping plates to move closer to or away from each other, thereby clamping or loosening the voltage transformer.

[0017] Preferably, a movable plate is slidably mounted on the base, the drive motor is mounted on the movable plate, the two screw rods are fixedly connected to a connecting rod rotatably connected to the movable plate, and the output shaft of the drive motor is connected to the connecting rod via a gear transmission.

[0018] By adopting the above technical solution, the driving motor drives the connecting rod to rotate, thereby driving the two screw rods to rotate, so as to achieve the clamping or loosening of the voltage transformer by the clamping plate.

[0019] Preferably, a guide rod parallel to the screw is installed between the movable plate and the clamping plate, the clamping plate is slidably connected to the guide rod, and a pull ring is installed on the movable plate. Pulling the pull ring can drive the clamping plate to move, thereby driving the clamping piece to move and pull out the exhaust belt.

[0020] By adopting the above technical solution, after the outer cone plug of the voltage transformer is docked with the inner cone of the mounting flange, the lock is locked, and the driving member drives the clamps to move away from each other so that the slide slides into the vertical groove, and the pull ring is pulled, which in turn drives the clamp and the chuck to move, so that the exhaust belt is pulled out.

[0021] Preferably, the driving assembly includes a lead screw rotatably connected to the lifting platform, a lead screw slider disposed below the slide plate and mounted on the lead screw, and a lead screw motor driving the lead screw to rotate.

[0022] By adopting the above technical solution, the screw motor drives the screw to rotate and then drives the screw slider, the slide plate and the base to slide, so as to achieve the docking of the outer cone plug of the voltage transformer with the inner cone of the mounting flange.

[0023] The beneficial effects of the above technical solution of the present invention are as follows: 1. The positioning mechanism of the present invention can not only clamp and center the voltage transformer on the base, but also make the base deflect and slide, which is conducive to the coincidence of the axis of the outer cone plug of the voltage transformer with the axis of the inner cone of the mounting flange, and further facilitates the completion of the docking of the outer cone plug of the voltage transformer with the inner cone of the mounting flange, reducing the number of adjustments to the voltage transformer and improving installation efficiency.

[0024] 2. The suction cup of the present invention can absorb and fix both sides of the voltage transformer, which is conducive to achieving the stability of fixing the irregular voltage transformer.

[0025] 3. The present invention fixes the exhaust belt on the chuck and puts it into the inner cone. After the outer cone plug of the voltage transformer is docked with the inner cone of the mounting flange, the clamp is pulled to drive the chuck to move, thereby pulling out the exhaust belt. Due to the limitation of the fixing plate, the voltage transformer will not be pulled out during the process of pulling out the exhaust belt, which solves the technical problem that it is difficult to pull the exhaust belt out from the inner cone due to blind spots and dead angles, thereby improving installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a structural schematic diagram of the voltage transformer positioning tool of the present invention when installing the voltage transformer; Figure 2 for Figure 1 The enlarged view of point A in the middle; Figure 3 It is a structural schematic diagram of the positioning mechanism of the present invention when the exhaust belt is pulled out; Figure 4 is a cross-sectional view of a splint of the present invention; Figure 5 It is a cross-sectional view of the base and the slide plate of the present invention.

[0027] In the figure: 1, positioning mechanism; 11, lifting platform; 111, slide plate; 112, sliding groove; 113, slide rail; 114, limit groove; 115, adjustment block; 116, groove; 12, base; 121, rotating sleeve; 122, reset spring 1; 123, reset spring 2; 124, fixing plate; 13, clamping plate; 131, airway; 132, air inlet; 133, suction cup; 134, air vent; 135, sliding block; 14, driving member; 141, screw; 142, Driving motor; 15. Clamping part; 151. Slide rod; 152. Chuck; 153. Positioning plate; 16. Lock; 17. Exhaust belt; 18. Slide groove; 181. Horizontal groove; 182. Vertical groove; 19. Moving plate; 191. Connecting rod; 192. Gear; 193. Guide rod; 194. Pull ring; 2. Driving assembly; 21. Lead screw; 22. Lead screw slider; 23. Lead screw motor; 3. Voltage transformer; 31. Outer cone plug; 4. Mounting flange; 41. Inner cone; 5. Distribution cabinet. DETAILED DESCRIPTION

[0028] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the embodiments of the present invention. Figure 1-Figure 5 , the technical scheme of the embodiment of the present invention is clearly and completely described. Obviously, the described embodiment is a part of the embodiment of the present invention, not all of the embodiments. Based on the described embodiment of the present invention, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the present invention.

[0029] Example This embodiment provides a voltage transformer positioning tool, which is suitable for plug-in voltage transformers, such as Figure 1 and Figure 2 As shown, it is used to install the voltage transformer 3 into the distribution cabinet 5. The distribution cabinet 5 is provided with a mounting flange 4, the mounting flange 4 has an inner cone 41, and the voltage transformer 3 has an outer cone plug 31 matched with the inner cone 41. After the outer cone plug 31 of the voltage transformer 3 is fully inserted into the inner cone 41, the end face flange on the voltage transformer 3 is fixed to the mounting flange 4 by bolts to complete the installation.

[0030] like Figure 1 and Figure 2 As shown, the voltage transformer 3 positioning tool includes a positioning mechanism 1 and a driving assembly 2. The positioning mechanism 1 realizes the clamping and centering of the voltage transformer 3, which is conducive to the smooth docking of the outer cone plug 31 of the voltage transformer 3 and the inner cone 41 of the mounting flange 4. The driving assembly 2 drives the voltage transformer 3 to move to complete the docking of the outer cone plug 31 of the voltage transformer 3 and the inner cone 41 of the mounting flange 4.

[0031] like Figure 1As shown, the positioning mechanism 1 includes a lifting platform 11 , a base 12 , a clamping plate 13 and a driving member 14 .

[0032] like Figure 1 and Figure 2 As shown, the lifting platform 11 is a scissor-type lifting platform 11, which is used to realize the lifting of the voltage transformer 3.

[0033] like Figure 1 and Figure 5 As shown, a slide plate 111 is provided above the lifting platform 11, a sliding groove 112 is provided below the slide plate 111, a slide rail 113 is fixedly installed on the lifting platform 11, and the sliding groove 112 slides along the slide rail 113 to realize the sliding connection of the slide plate 111 on the lifting platform 11. The notch direction of the sliding groove 112 is parallel to the axial direction of the inner cone 41 of the mounting flange 4.

[0034] like Figure 1 and Figure 2 As shown, the base 12 is arranged above the slide plate 111 and is used to carry the voltage transformer 3. Figure 5 As shown, a limiting groove 114 is provided in the middle part of the slide plate 111, and an adjusting block 115 is slidably provided in the limiting groove 114. A groove 116 is provided in the adjusting block 115. A rotating sleeve 121 is fixedly installed below the base 12, and the rotating sleeve 121 is rotatably connected in the groove 116 to realize the rotational connection between the adjusting block 115 and the base 12. A return spring 122 is installed in the rotating sleeve 121, and one end of the return spring 122 is connected in the rotating sleeve 121, and the other end is connected in the groove 116. The return spring 122 is a torsion spring.

[0035] like Figure 1 and Figure 5 As shown, the sliding of the slide plate 111 on the lifting platform 11 can drive the base 12 to move synchronously. The sliding direction of the adjustment block 115 in the limiting groove 114 is perpendicular to the sliding direction of the slide plate 111, that is, the sliding direction of the adjustment block 115 in the limiting groove 114 is perpendicular to the sliding direction of the base 12. A sliding distance is left between the two sides of the adjustment block 115 along the sliding direction and the inner wall of the limiting groove 114, and a return spring 123 is arranged in the sliding distance. One end of the return spring 123 is connected to the adjustment block 115, and the other end is connected to the limiting groove 114. The return spring 123 is a columnar coil spring.

[0036] like Figure 1 and Figure 2 As shown, the clamping plates 13 are located above the base 12 and two clamping plates 13 are arranged in parallel. The driving member 14 drives the two clamping plates 13 to move closer to or away from each other to clamp or release the voltage transformer 3.

[0037] like Figure 4As shown, the two clamping plates 13 are provided with air passages 131 in the plate surface, one end of the air passage 131 is provided with an air inlet 132, the air inlet 132 is connected to the air source, and the other end of the air passage 131 is slidably connected to a clamping member 15. The clamping member 15 includes a slide bar 151 slidably installed in the air passage 131 and a clamping head 152 fixedly connected to the end of the slide bar 151, as shown in FIG. Figure 2 As shown, the two clamps 152 can clamp both sides of the mounting flange 4. The two clamps 152 are fixedly connected with a positioning plate 153, and the plate surface of the positioning plate 153 is parallel to the flange surface of the mounting flange 4.

[0038] like Figure 2 and Figure 4 As shown, after ventilation is allowed in the air passage 131 , the slide rod 151 extends toward the side close to the mounting flange 4 , and the positioning plate 153 can abut against the flange surface of the mounting flange 4 , which is beneficial for achieving parallelism between the axis of the outer cone plug 31 of the voltage transformer 3 and the axis of the inner cone 41 of the mounting flange 4 .

[0039] like Figure 3 As shown, both sides of the clamping plate 13 are provided with suction cups 133 that can fix the two sides of the voltage transformer 3, and the clamping plate 13 is provided with vents 134 that can communicate with the suction cups 133. When air is sucked into the vents 134, the suction cups 133 adsorb and fix the two sides of the voltage transformer 3, which is conducive to achieving the stability of the irregular voltage transformer 3.

[0040] like Figure 3 As shown, the driving member 14 includes a screw rod 141 connected to the clamping plate 13 through a thread and a driving motor 142 driving the screw rod 141 to rotate; the two screw rods 141 are connected to the two clamping plates 13 one by one, and the rotation directions of the threads on the two screw rods 141 are opposite. The driving motor 142 drives the screw rod 141 to rotate, thereby driving the two clamping plates 13 to move closer to or away from each other, thereby clamping or loosening the voltage transformer 3.

[0041] like Figure 1 As shown, the drive assembly 2 includes a lead screw 21 , a lead screw slider 22 and a lead screw motor 23 .

[0042] like Figure 1 As shown, the lead screw 21 is rotatably connected to the lifting platform 11, and the axis of the lead screw 21 is parallel to the notch direction of the sliding slot 112. The lead screw slider 22 is fixedly connected below the slide plate 111 and installed on the lead screw 21. The lead screw motor 23 is arranged on the lifting platform 11 and can drive the lead screw 21 to rotate.

[0043] like Figure 1 As shown, the screw motor 23 drives the screw 21 to rotate and then drives the screw slider 22, the slide plate 111 and the base 12 to slide, so as to achieve the docking of the outer cone plug 31 of the voltage transformer 3 with the inner cone 41 of the mounting flange 4.

[0044] like Figure 1 and Figure 2 As shown, the voltage transformer 3 is placed on the base 12, as shown in FIG. Figure 4 As shown, air is ventilated in the air passage 131, the slide bar 151 extends, the screw motor 23 drives the screw 21 to rotate, and then drives the screw slider 22, the slide plate 111 and the base 12 to slide toward the side close to the mounting flange 4 until the positioning plate 153 abuts against the flange surface; when the lifting platform 11 is tilted, one positioning plate 153 abuts against the flange surface first, and as the screw motor 23 continues to rotate, the base 12 continues to slide, as shown in FIG. Figure 5 As shown, since the base 12 and the adjustment block 115 are rotatably connected, the base 12 deflects until both positioning plates 153 abut against the flange surface, which is conducive to achieving parallelism between the axis of the outer cone plug 31 of the voltage transformer 3 and the axis of the inner cone 41 of the mounting flange 4.

[0045] like Figure 1 and Figure 2 As shown, the driving motor 142 drives the two clamping plates 13 to approach each other, and the two clamping plates 13 clamp and center the voltage transformer 3. After centering, the two clamps 152 can clamp the two sides of the mounting flange 4; when the lifting platform 11 is offset, that is, the center line of the lifting platform 11 along the axis direction of the inner cone 41 of the mounting flange 4 is offset from the axis of the inner cone 41 of the mounting flange 4, the driving motor 142 drives the two clamping plates 13 to approach each other, and drives the two clamps 152 to approach each other, and one of the clamps 152 is first clamped to one side of the mounting flange 4, and as the driving motor 142 continues to rotate, as shown in FIG. Figure 5 As shown, another clamp 152 pushes the voltage transformer 3 to move, and drives the base 12 and the adjustment block 115 to slide in the limit groove 114. As the two clamps 13 slowly approach, the two sides of the voltage transformer 3 are clamped. At the same time, the two clamps 152 can clamp the mounting flange 4, which is conducive to achieving the coincidence of the axis of the outer cone plug 31 of the voltage transformer 3 and the axis of the inner cone 41 of the mounting flange 4, reducing the number of adjustments to the voltage transformer 3 and improving installation efficiency.

[0046] like Figure 3 As shown, a fixing plate 124 is vertically installed above the base 12, and the plate surface of the fixing plate 124 is perpendicular to the plate surface of the clamping plate 13. The end of the positioning plate 153 is fixed with an exhaust belt 17 that can be inserted into the inner cone 41 of the mounting flange 4, and the exhaust belt 17 is flexible. A lock buckle 16 is connected between the clamp 152 and the clamping plate 13, as shown in FIG. Figure 5 As shown, two slide grooves 18 are provided on the base 12, and both slide grooves 18 have a horizontal groove 181 and a vertical groove 182. Figure 4 As shown, a sliding block 135 capable of sliding in the sliding groove 18 is provided below the clamping plate 13 .

[0047] like Figure 5 As shown, the transverse groove 181 is connected to the vertical groove 182, the notch direction of the vertical groove 182 is parallel to the axial direction of the inner cone 41 of the mounting flange 4, and the notch direction of the transverse groove 181 is perpendicular to the notch direction of the vertical groove 182, that is, the notch direction of the transverse groove 181 is parallel to the direction in which the two clamping plates 13 approach each other. Figure 4 As shown, the sliding block 135 slides in the transverse groove 181 to enable the clamping plate 13 to clamp the voltage transformer 3, and the sliding block 135 slides in the vertical groove 182 to drive the clamping member 15 to move and pull out the exhaust belt 17.

[0048] like Figure 3 As shown, a movable plate 19 is slidably mounted on the base 12, a driving motor 142 is mounted on the movable plate 19, two screw rods 141 are fixedly connected to a connecting rod 191 rotatably connected to the movable plate 19, and an output shaft of the driving motor 142 is connected to the connecting rod 191 via a gear 192.

[0049] like Figure 3 As shown, a guide rod 193 parallel to the screw 141 is installed between the movable plate 19 and the clamping plate 13, and the clamping plate 13 is slidably connected to the guide rod 193. A pull ring 194 is installed on the movable plate 19. Pulling the pull ring 194 can drive the clamping plate 13 to move, thereby driving the clamping member 15 to move and pull out the exhaust belt 17.

[0050] like Figure 3 As shown, the exhaust belt 17 is placed into the inner cone 41, and after the outer cone plug 31 of the voltage transformer 3 is docked with the inner cone 41 of the mounting flange 4, the lock buckle 16 locks the clamping plate 13 and the clamping head 152, and the driving motor 142 drives the clamping plates 13 to move away from each other so that the sliding block 135 slides into the vertical groove 182, and the pull ring 194 is pulled to drive the clamping plate 13 and the clamping head 152 to move away from the mounting flange 4, thereby pulling out the exhaust belt 17. Due to the limitation of the fixing plate 124, the voltage transformer 3 will not be pulled out during the process of pulling out the exhaust belt 17, which solves the technical problem that it is difficult to pull out the exhaust belt 17 from the inner cone 41 due to the presence of blind spots and dead angles, thereby improving the installation efficiency.

[0051] A voltage transformer positioning tool implementation principle of this embodiment: The voltage transformer 3 is placed on the base 12, the lock 16 is unlocked, the air passage 131 is ventilated, the slide bar 151 is extended, the sliding block 135 under the clamping plate 13 is located in the transverse groove 181, and the screw motor 23 drives the screw 21 to rotate, thereby driving the screw slider 22, the slide plate 111 and the base 12 to slide to the side close to the mounting flange 4 until the positioning plate 153 abuts against the flange surface of the mounting flange 4, and the exhaust belt 17 is placed in the inner cone 41 before the positioning plate 153 abuts against the flange surface; when the lifting platform 11 is tilted, one positioning plate 153 abuts against the flange surface first, and as the screw motor 23 continues to rotate, the base 12 continues to slide, and since the base 12 and the adjusting block 115 are rotatably connected, the base 12 deflects until both positioning plates 153 abut against the flange surface, which is conducive to achieving the parallelism of the axis of the outer cone plug 31 of the voltage transformer 3 and the axis of the inner cone 41 of the mounting flange 4.

[0052] The driving motor 142 drives the two clamping plates 13 to approach each other, and the two clamping plates 13 clamp and center the voltage transformer 3, and exhaust air into the vent 134, and the suction cup 133 adsorbs and fixes the two sides of the voltage transformer 3. After centering, the two clamps 152 can clamp the two sides of the mounting flange 4; when the lifting platform 11 is offset, that is, the center line of the lifting platform 11 along the axis direction of the inner cone 41 of the mounting flange 4 is offset from the axis of the inner cone 41 of the mounting flange 4, the driving motor 142 drives the two clamping plates 13 to approach each other, driving the two clamps 152 are close to each other, and one of the clamps 152 is first clamped to one side of the mounting flange 4. As the driving motor 142 continues to rotate, the other clamp 152 pushes the voltage transformer 3 to move, and drives the base 12 and the adjustment block 115 to slide in the limit groove 114. As the two clamps 13 slowly approach each other, the clamping of both sides of the voltage transformer 3 is achieved. At the same time, the two clamps 152 can be clamped to the mounting flange 4, which is conducive to achieving the coincidence of the axis of the outer cone plug 31 of the voltage transformer 3 with the axis of the inner cone 41 of the mounting flange 4.

[0053] The air duct 131 stops ventilation, and the screw motor 23 drives the screw 21 to rotate, thereby driving the screw slider 22, the slide plate 111 and the base 12 to slide toward the side close to the mounting flange 4, so as to realize the docking of the outer cone plug 31 of the voltage transformer 3 with the inner cone 41 of the mounting flange 4, and the lock 16 locks the clamp 13 and the chuck 152, and ventilation is allowed into the air vent 134. The suction cup 133 cancels the adsorption of both sides of the voltage transformer 3, and the driving motor 142 drives the clamps 13 away from each other to allow the sliding block 135 to slide into the vertical groove 182, and the pull ring 194 is pulled to drive the clamp 13 and the chuck 152 to move away from the mounting flange 4, thereby pulling out the exhaust belt 17. After the voltage transformer 3 is fully inserted into the inner cone 41, the end face flange of the voltage transformer 3 is fixed to the mounting flange 4 by bolts.

[0054] In addition, it should be noted that in the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0055] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A voltage transformer positioning tool, comprising a positioning mechanism (1) and a driving assembly (2) arranged on a lifting platform (11), wherein the positioning mechanism (1) comprises a base (12) slidably arranged on the lifting platform (11) and used to carry a voltage transformer (3), a clamping plate (13) arranged on the base (12) and capable of clamping the voltage transformer (3), and a driving member (14) for driving the two clamping plates (13) to move closer to or farther from each other; the characteristics are as follows: The driving assembly (2) drives the base (12) to move so that the outer cone plug (31) of the voltage transformer (3) is butted against the inner cone (41) of the mounting flange (4); An air passage (131) is provided in the clamping plate (13), a clamping member (15) capable of clamping the mounting flange (4) is slidably connected in the air passage (131), a positioning plate (153) capable of abutting against the flange surface of the mounting flange (4) is installed on the clamping member (15), a slide plate (111) is provided below the base (12), a limiting groove (114) is provided on the slide plate (111), an adjusting block (115) is slidably provided in the limiting groove (114), the base (12) is rotatably connected to the adjusting block (115), and a return spring (122) is connected between the adjusting block (115) and the base (12); The sliding direction of the adjustment block (115) is perpendicular to the sliding direction of the base (12), and a second return spring (123) is connected between both sides of the adjustment block (115) along the sliding direction and the limiting groove (114).

2. The voltage transformer positioning tool according to claim 1, characterized in that: Suction cups (133) capable of fixing the two sides of the voltage transformer (3) are provided on both sides of the clamping plate (13), and a vent (134) capable of communicating with the suction cups (133) is installed on the clamping plate (13).

3. The voltage transformer positioning tool according to claim 2, characterized in that: The clamping member (15) comprises a sliding rod (151) slidably mounted in the air passage (131) and a clamping head (152) fixedly connected to the end of the sliding rod (151) and capable of clamping the mounting flange (4); the positioning plate (153) is fixedly mounted on the clamping head (152).

4. The voltage transformer positioning tool according to claim 3, characterized in that: A fixing plate (124) is vertically mounted above the base (12); an exhaust belt (17) capable of being inserted into the inner cone (41) of the mounting flange (4) is fixedly mounted at the end of the positioning plate (153); a lock buckle (16) is connected between the clamp (152) and the clamping plate (13); two slide grooves (18) are provided on the base (12); the two slide grooves (18) each include a transverse groove (181) and a vertical groove (182); and a sliding block (135) capable of sliding in the slide groove (18) is provided below the clamping plate (13); The sliding block (135) slides in the transverse groove (181) so that the clamping plate (13) clamps the voltage transformer (3), and the sliding block (135) slides in the vertical groove (182) to drive the clamping member (15) to move and pull out the exhaust belt (17).

5. The voltage transformer positioning tool according to claim 4, characterized in that: The driving member (14) comprises a screw rod (141) connected to the clamping plate (13) via a thread and a driving motor (142) driving the screw rod (141) to rotate; the two screw rods (141) are connected to the two clamping plates (13) in a one-to-one correspondence, and the threads on the two screw rods (141) rotate in opposite directions.

6. The voltage transformer positioning tool according to claim 5, characterized in that: A movable plate (19) is slidably mounted on the base (12), a driving motor (142) is mounted on the movable plate (19), two screw rods (141) are fixedly connected to a connecting rod (191) rotatably connected to the movable plate (19), and an output shaft of the driving motor (142) and the connecting rod (191) are connected by transmission via a gear (192).

7. The voltage transformer positioning tool according to claim 6, characterized in that: A guide rod (193) parallel to the screw rod (141) is installed between the movable plate (19) and the clamping plate (13). The clamping plate (13) is slidably connected to the guide rod (193). A pull ring (194) is installed on the movable plate (19). Pulling the pull ring (194) can drive the clamping plate (13) to move, thereby driving the clamping member (15) to move and pull out the exhaust belt (17).

8. The voltage transformer positioning tool according to claim 7, characterized in that: The driving assembly (2) comprises a lead screw (21) rotatably connected to the lifting platform (11), a lead screw slider (22) disposed below the slide plate (111) and mounted on the lead screw (21), and a lead screw motor (23) driving the lead screw (21) to rotate.

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