Adjustable clamp for current transformer machining

Abstract

The utility model provides an adjustable fixture for current transformer processing, which comprises a base, a tray is erected above the base, four sliding blocks are arranged on the tray in a circumferential array, the sliding blocks are slidably connected with the tray along the radial direction of the tray, the top of each sliding block is vertically provided with a support column, and the top of each support column is provided with a clamping groove. The bottom of the tray is provided with an adjusting mechanism for driving the sliding blocks to be synchronously close to or away from the circle center of the tray. According to the current transformer clamping and releasing device, a bidirectional lead screw in the adjusting mechanism is rotated, the bidirectional lead screw drives the two driving plates to be close to or away from each other, the driving plates drive the sliding blocks at the two ends of the driving plates to move in the radial direction of the tray, and the current transformer is clamped or released through cooperation of supporting columns at the tops of the sliding blocks; the bidirectional lead screw is rotated, and the driving block drives the sliding block to move within a certain range in the radial direction of the tray, so that the current transformers of different specifications can be clamped and fixed in a matched mode.

Description

Technical Field

[0001] This utility model belongs to the technical field of current transformer processing equipment, specifically relating to an adjustable fixture for processing current transformers. Background Technology

[0002] During the assembly of current transformers, clamps are needed to hold and fix them in place for easy assembly. Initially, the clamps were only suitable for holding and fixing one type of current transformer.

[0003] Chinese utility model patent document with authorization announcement number CN213877810U discloses a clamp for assembling current transformers, which can clamp and fix current transformers of different specifications by rotating the adjusting bolts; however, the adjustment process requires rotating and adjusting multiple adjusting bolts separately, which is cumbersome. Furthermore, since multiple adjusting bolts are adjusted separately, the positions of the adjusting bolts are inevitably different, which causes the current transformer to shift after clamping and cannot guarantee that its center is fixed.

[0004] Therefore, it is necessary to design an adjustable clamp for current transformer machining that is easy to adjust quickly and ensures that the center position of the current transformer is fixed after clamping, in order to solve the current technical problems. Utility Model Content

[0005] In view of the shortcomings of the existing technology, this utility model provides an adjustable clamp for the processing of current transformers that is convenient for quick adjustment and ensures that the center position of the current transformer is fixed after clamping.

[0006] The technical solution of this utility model is as follows: an adjustable fixture for processing current transformers, including a base, a tray mounted on the top of the base, four sliders arranged in a circumferential array on the tray, the sliders being slidably connected to the tray along its radial direction, a support column being vertically arranged on the top of the sliders, and an adjustment mechanism being arranged at the bottom of the tray to drive the sliders to synchronously move closer to or away from the center of the tray; the adjustment mechanism has two parallel drive plates, the two ends of the drive plates being slidably connected to the bottom of two adjacent sliders respectively, a bidirectional lead screw being rotatably arranged at the bottom of the tray, the drive plates being threadedly connected to the bidirectional lead screw, and the bidirectional lead screw driving the two drive plates to move closer to or away from each other.

[0007] Furthermore, the bidirectional lead screw is rotatably provided with supports at its middle and both ends, the supports are fixedly provided at the bottom of the tray, and a slide rod parallel to the bidirectional lead screw is fixedly provided on the support, and the drive plate is slidably connected to the slide rod.

[0008] Further, two chutes are symmetrically formed on the driving plate, and a sliding column is slidably disposed inside the chute. The sliding column is fixedly disposed at the bottom of the slider.

[0009] Further, a limiting plate is fixedly disposed at the other end of the sliding column.

[0010] Further, a buffer column is sleeved outside the support column. Buffer holes are formed in a circumferential array on the buffer column, and the axis of the buffer hole is parallel to the axis of the support column.

[0011] Further, the slider has a "return" - shaped structure. A slideway matching the slider is provided on the tray, and sliding openings matching the slider are formed on both sides of the slideway.

[0012] Further, two semi - circular backing plates are symmetrically disposed on the tray. Avoidance openings matching the movement track of the slider are formed on the backing plates, and an avoidance groove is provided between the two backing plates.

[0013] Further, columns are arranged in a circumferential array at the bottom of the tray, and the bottoms of the columns are fixedly disposed on the top of the base.

[0014] Further, a runner is fixedly disposed at one end of the bidirectional lead screw. <9000032>Further, an anti - slip pad is fixedly disposed at the bottom of the base. The anti - slip pad is a rubber plate fixedly disposed at the bottom of the base.

[0016] Advantages of the utility model:

[0017] (1) In the utility model, by rotating the bidirectional lead screw in the adjustment mechanism, the bidirectional lead screw drives the two driving plates to approach or move away from each other. The driving plates drive the sliders at their two ends to move radially along the tray, and the current transformer is clamped or released through the cooperation of the support columns at the tops of the sliders;

[0018] (2) By rotating the bidirectional lead screw, the driving block can drive the slider to move radially within a certain range along the tray, so as to be able to clamp and fix current transformers of different specifications;

[0019] (3) Through the bidirectional lead screw in the adjustment mechanism, the sliders can be simultaneously driven to approach or move away from the center of the tray synchronously, which can ensure that the center position of the current transformer after each clamping is fixed. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structure diagram of the utility model Figure 1 .

[0021] Figure 2 is a schematic structure diagram of the utility model Figure 2 .

[0022] Figure 3 for Figure 2 Cross-sectional view at point AA. Detailed Implementation

[0023] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. The descriptions of the exemplary embodiments are merely illustrative and are not intended to limit the present invention or its application or use in any way. The present invention can be implemented in many different forms and is not limited to the embodiments described herein. These embodiments are provided to make the present invention thorough and complete, and to fully express the scope of the present invention to those skilled in the art. It should be noted that, unless otherwise specifically stated, the relative arrangement of components and steps, the composition of materials, numerical expressions, and values ​​set forth in these embodiments should be interpreted as merely exemplary and not as limiting.

[0024] The terms "first," "second," and similar words used in this invention do not indicate any order, quantity, or importance, but are merely used to distinguish different parts. Words such as "including" or "comprising" mean that the element preceding the word encompasses the element listed after it, and do not exclude the possibility of encompassing other elements as well. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] like Figures 1 to 3As shown, the adjustable fixture for processing current transformers includes a base 1, a tray 2 mounted on top of the base 1, four sliders 4 arranged in a circular array on the tray 2, the sliders 4 being slidably connected to the tray 2 radially, a support column 5 vertically mounted on the top of the sliders 4, and an adjustment mechanism 7 at the bottom of the tray 2 for driving the sliders 4 to synchronously move closer to or away from the center of the tray 2; the adjustment mechanism 7 has two parallel drive plates 75, the two ends of which are slidably connected to the bottom of two adjacent sliders 4 respectively, a bidirectional lead screw 71 rotatably mounted on the bottom of the tray 2, the drive plates 75 being threadedly connected to the bidirectional lead screw 71, the bidirectional lead screw 71 driving the two drive plates 75 to move closer or further away. In this embodiment, rotating the bidirectional lead screw 71 in the adjustment mechanism 7 drives the two drive plates 75 to move closer or further apart. The drive plates 75 drive the sliders 4 at both ends to move radially along the tray 2. The current transformer is clamped or released by the support column 5 at the top of the slider 4. Rotating the bidirectional lead screw 72 drives the drive block 75 to move the slider 4 radially along the tray 2 within a certain range, thereby matching and clamping current transformers of different specifications. The bidirectional lead screw 71 in the adjustment mechanism 7 can simultaneously drive the slider 4 to move closer or further away from the center of the tray 2, ensuring that the center position of the current transformer is fixed after each clamping.

[0026] In some embodiments, supports 74 are rotatably provided at the middle and both ends of the bidirectional lead screw 71. The supports 74 are fixedly provided at the bottom of the tray 2. A slide rod 72 parallel to the bidirectional lead screw 71 is fixedly provided on the supports 74. The drive plate 75 is slidably connected to the slide rod 72. By cooperating with the slide rod 72, the stability of the drive plate 75 sliding at the bottom of the tray 2 can be improved, providing stable sliding support for the drive plate 75. It can also move along the slide rod 72 under the drive of the bidirectional lead screw 71. The bidirectional lead screw 71 has two external thread structures that are respectively threaded to the two drive plates 75.

[0027] In some embodiments, two symmetrical sliding grooves 76 are provided on the drive plate 75, and a sliding post is slidably arranged inside the sliding groove 76. The sliding post is fixedly arranged at the bottom of the slider 4. The bottom of the slider 4 cooperates with the sliding groove 76 through the sliding post, realizing the sliding connection between the slider 4 and the drive plate 75.

[0028] In some embodiments, a limiting plate 77 is fixedly provided at the other end of the sliding column. The limiting plate 77 acts as a blocking and limiting device for the drive plate 75, so that the sliding column can be kept inside the sliding groove 76, ensuring the stability of the sliding connection between the slider 4 and the drive plate 5.

[0029] In some embodiments, a buffer column 6 is sleeved outside the support column 5. Buffer holes 61 are arranged in a circular array on the upper part of the buffer column 6, and the axes of the buffer holes 61 are parallel to the axis of the support column 5; the support column 5 provides support for the buffer column 6 inside it; the buffer column 6 can play a certain buffering role between the support column 5 and the current transformer during clamping, avoiding damage to the current transformer; the bottom end of the support column 5 is detachably threadedly assembled on the top of the slider 4, and the detachable design facilitates replacement and maintenance; the buffer holes 61 reserve space for the deformation of the buffer column 6. During clamping, the buffer column 6 can generate large deformation, fit with the outside of the current transformer, and increase the contact area to improve the clamping stability.

[0030] In some embodiments, the slider 4 has a "return" - shaped structure, and a slideway 22 matching the slider 4 is arranged on the tray 2, and sliding openings 21 matching the slider are opened on both sides of the slideway 22.

[0031] In some embodiments, two semi - circular backing plates 3 are symmetrically arranged on the tray 2. Avoidance openings 32 matching the movement track of the slider 4 are opened on the backing plates 3, and an avoidance groove 31 is arranged between the two backing plates 3; the opening of the avoidance groove 31 can prevent the cutting piece from contacting the backing plate 3 when cutting the current transformer.

[0032] In some embodiments, columns 21 are arranged in a circular array at the bottom of the tray 2, and the bottoms of the columns 21 are fixedly arranged on the top of the base 1.

[0033] In some embodiments, a rotating wheel 73 is fixedly arranged at one end of the bidirectional lead screw 71, and the bidirectional lead screw 71 can be conveniently rotated and adjusted through the rotating wheel 73.

[0034] In some embodiments, an anti - slip pad 11 is fixedly arranged at the bottom of the base 1, and the anti - slip pad 11 is a rubber plate fixedly arranged at the bottom of the base 1.

[0035] So far, the embodiments of the present invention have been described in detail. To avoid obscuring the concept of the present invention, some details well - known in the art have not been described. Those skilled in the art can fully understand how to implement the technical solutions disclosed here based on the above description.

[0036] The above - described embodiments only represent some implementation manners of the present invention. Their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An adjustable fixture for machining current transformers, characterized in that: It includes a base, a tray is erected above the base, four sliders are arranged in a circumferential array on the tray, the sliders are slidably connected to the tray along the radial direction of the tray, a support column is vertically arranged at the top of the slider, and an adjusting mechanism for driving the sliders to synchronously approach or move away from the center of the tray is arranged at the bottom of the tray; the adjusting mechanism has two parallel driving plates, both ends of the driving plate are slidably connected to the bottoms of two adjacent sliders, a bidirectional screw rod is rotatably arranged at the bottom of the tray, the driving plate is threadedly connected to the bidirectional screw rod, and the bidirectional screw rod drives the two driving plates to approach or move away from each other.

2. The adjustable fixture for machining current transformers according to claim 1, characterized in that: Supports are rotatably arranged at the middle and both ends of the bidirectional screw rod, the supports are fixedly arranged at the bottom of the tray, a sliding rod parallel to the bidirectional screw rod is fixedly arranged on the support, and the driving plate is slidably connected to the sliding rod.

3. The adjustable fixture for machining current transformers according to claim 1, characterized in that: Two chutes are symmetrically arranged on the driving plate, a sliding column is slidably arranged inside the chute, and the sliding column is fixedly arranged at the bottom of the slider.

4. The adjustable fixture for machining current transformers according to claim 3, characterized in that: A limiting plate is fixedly arranged at the other end of the sliding column.

5. The adjustable fixture for machining current transformers according to claim 1, characterized in that: A buffer column is sleeved outside the support column, buffer channels are arranged in a circumferential array on the buffer column, and the axis of the buffer channel is parallel to the axis of the support column.

6. The adjustable fixture for machining current transformers according to claim 1, characterized in that: The slider is in a "return" - shaped structure, a slideway matching the slider is arranged on the tray, and sliding openings matching the slider are arranged on both sides of the slideway.

7. The adjustable fixture for machining current transformers according to claim 1, characterized in that: Two semi - circular cushion plates are symmetrically arranged on the tray, an avoidance opening matching the movement track of the slider is arranged on the cushion plate, and an avoidance groove is arranged between the two cushion plates.

8. The adjustable fixture for machining current transformers according to claim 1, characterized in that: Columns are arranged in a circumferential array at the bottom of the tray, and the bottoms of the columns are fixedly arranged on the top of the base.

9. The adjustable fixture for machining current transformers according to claim 1, characterized in that: A runner is fixedly arranged at one end of the bidirectional screw rod.

10. The adjustable fixture for machining current transformers according to claim 1, characterized in that: An anti - slip pad is fixedly arranged at the bottom of the base, and the anti - slip pad is a rubber plate fixedly arranged at the bottom of the base.

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