CN201904207U - Fixture used for assembling electromagnet of transformer - Google Patents

Abstract

The utility model relates to a fixture used for assembling electromagnets in transformers, comprising a first clamping block and a second clamping block, the two ends of the first and second clamping blocks are respectively connected by corresponding pin shafts, the first and second clamping blocks are respectively connected by corresponding pin shafts. The second clamping blocks are respectively guided and matched with the pin shaft along the axial direction of the pin shaft. The two clamping blocks are provided with corresponding arc-shaped clamping openings on the side close to each other in the axial direction of the pin shaft, opposite to each other. One side of the vise is respectively provided with a step surface for matching with the edge of the jaw of the vise; since the clamp used for the assembly of the electromagnet in the transformer of the utility model is respectively provided with corresponding clamps on the first and second clamps. The arc-shaped clamping opening reduces the local contact stress between the fixture and the lance, and solves the problem of the lance being pinched; in addition, because it can be used in conjunction with a vise, the work efficiency is improved; the fixture of the utility model is both The utility model can prevent the ram from being pinched and can be operated by a single person, and generally solves the problem of difficult installation of the locking nut on the electromagnet ram during the electromagnet assembly process.

Description

A jig for assembling electromagnets in transformers

technical field

The utility model relates to an auxiliary tool for assembling an electromagnet in a transformer, in particular to a clamp used for assembling an electromagnet in a transformer.

Background technique

The electromagnet is one of the indispensable parts of the current transformer. During the assembly process of the electromagnet, it is necessary to set a lock nut at one end of the electromagnet plunger. Since the outer contour of the electromagnet plunger is circular, the lock It is more difficult to install the tightening nut; specifically, it is more difficult to clamp the electromagnet striker. If you only use a vise to clamp it directly, as we all know, the jaws of the vise are all clamping on a plane. The electromagnet lance is directly fixed at the jaws, and the lance is easily pinched and becomes invalid; if it is clamped by pliers, at least two workers are required to operate at the same time, and the time-consuming and labor-intensive efficiency is extremely low.

Contents of the invention

The purpose of the utility model is to provide a clamp used for assembling the electromagnet in the transformer, so as to solve the problem of difficulty in installing the lock nut on the electromagnet lance during the electromagnet assembly process.

In order to solve the above problems, the fixture for assembling electromagnets in transformers of the utility model adopts the following technical solutions: a fixture for assembling electromagnets in transformers, including a first clamping block and a second clamping block, the first 1. The two ends of the second clamping block are respectively connected by corresponding pin shafts, the first and second clamping blocks are respectively guided and matched with the pin shaft along the axial direction of the pin shaft, and the two clamping blocks are close to each other in the axial direction of the pin shaft Corresponding arc-shaped clamping openings for clamping the lance are provided on one side of the two clamping blocks, and stepped surfaces for engaging with the edge of the vise jaws are respectively provided on the sides of the two clamping blocks away from each other.

The clamping opening is semicircular.

The two pin shafts are respectively sleeved with return springs, and each of the return springs is top-mounted between the first and second clamping blocks.

Since the fixture used for assembling the electromagnet in the transformer of the utility model has corresponding arc-shaped clamping openings respectively provided on its first and second clamping blocks, it can be well adapted to the shape of the lance of the electromagnet. , which increases the contact area between the fixture and the lance, reduces the local contact stress between the fixture and the lance, and solves the problem of pinching the lance caused by directly clamping the lance with vise; in addition, due to the two The clamping blocks are respectively provided with stepped surfaces for clamping with the vise, which can be used in conjunction with the vise, so only one person can operate, which reduces labor costs and improves work efficiency; the clamp of the utility model can not only The utility model can prevent the ram from being pinched and can be operated by a single person, and generally solves the problem of difficult installation of the locking nut on the ram of the electromagnet during the assembling process of the electromagnet.

Furthermore, a return spring is installed on the top between the two clips, which can make the two clips bounce off automatically after each use. On the one hand, the labor intensity of the staff is further reduced, and on the other hand, the upper part is also improved. production efficiency.

Description of drawings

Fig. 1 is the use state diagram (with partial cutaway) of Embodiment 1 of the clamp for electromagnet assembly in the transformer of the present utility model;

Fig. 2 is a top view of Fig. 1 after the lance is removed.

Detailed ways

Embodiment 1 of the fixture used for the assembly of electromagnets in transformers of the present utility model, as shown in Figure 1-2, consists of a first clamping block 1, a second clamping block 2, and two pin shafts 3 for connecting the two clamping blocks And the back-moving spring 4 that the top is installed between the two clamping blocks is composed. The two ends of the first and second clamping blocks are respectively connected by the pin shaft 3, and the two clamping blocks are all in the axial direction of the pin shaft 3 to cooperate with the movable guide of the pin shaft 3, and the two pin shafts 3 are respectively sleeved with a return spring 4, The return spring 4 is installed between the two clamps on the top, and the return spring 4 is used to pop open the two clamps automatically after the workpiece is assembled, which is convenient for the next use, and also reduces the labor intensity of the staff. The two clamping blocks are respectively provided with semicircular clamping openings 5 on the side close to each other in the axial direction of the pin shaft 3. The clamping openings 5 are used to put in and clamp the electromagnet striker 6. Due to the clamping The mouth 5 is semicircular, so it is compatible with the outer contour of the lance 6, which can increase the contact area with the lance 6, reduce the local stress when the clamping mouth 5 clamps the lance 6, and avoid the impact of the lance 6. Being pinched; the two clamping blocks are respectively provided with stepped surfaces on the sides opposite to each other in the axial direction of the pin shaft 3 for engaging with the jaws of the vise. When the clamp used for assembling the electromagnet in the transformer of the utility model is used, firstly, the clamp is placed on the jaw of the vise, and the two clamps are respectively clamped by the corresponding step surface and the jaw of the vise. Then place the plunger 6 between the clamping openings of the two clamping blocks. After clamping the ejector rod by rotating the vise, the nut assembly can be carried out; after the assembly is completed, rotate the vise to loosen the two clamping blocks. Open, two clip blocks are separated automatically under the effect of back-moving spring, can take out lance 6, then put into next lance and continue to assemble, so cycle.

In the above-mentioned embodiment, the shape of the clamping opening 5 can also be arc-shaped other than semicircle, and the return spring 4 can also be omitted.

Claims (3)

1. A fixture for assembling electromagnets in transformers, characterized in that: it comprises a first clamping block and a second clamping block, the two ends of the first and second clamping blocks are respectively connected by corresponding pin shafts, the first 1. The second clamping blocks are respectively guided and coordinated with the pin shaft along the axial direction of the pin shaft. The two clamping blocks are provided with corresponding arcs for clamping the lance on the side close to each other in the axial direction of the pin shaft. shaped clamping openings, the sides of the two clamping blocks facing away from each other are respectively provided with stepped surfaces for engaging with the jaws of the vise. 2. The jig for assembling the electromagnet in the transformer according to claim 1, wherein the clamping opening is semicircular. 3. The fixture for assembling electromagnets in transformers according to claim 1 or 2, characterized in that: the two pin shafts are respectively sleeved with return springs, and each of the return springs is top mounted on the first , Between the second clamping block.

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