CN222016363U - Bending forming tool - Google Patents

Abstract

The utility model discloses a bending forming tool. The bending forming tool comprises: the bending forming tool comprises a ring part and a plurality of tooth parts, wherein the tooth parts are arranged on the ring part, an avoidance groove is formed in one end, deviating from the ring part, of the tooth parts, the avoidance groove is suitable for avoiding a workpiece, and the avoidance groove is formed in one end, deviating from the ring part, of the tooth part of the bending forming tool.

Description

Bending forming tool

Technical Field

The utility model relates to the technical field of bending equipment, in particular to a bending forming tool.

Background

In the related art, the welding end of the motor X-pin winding is generally bent by adopting a bending tool, so that the axial length of the motor can be reduced. In the existing bending tool structure, when the winding is bent, the bending degree of the winding is restrained, so that the axial length of the winding is shortened less.

Therefore, a new technical solution is needed to solve the above technical problems.

Disclosure of utility model

The utility model aims to provide a novel technical scheme of a bending forming tool.

According to one aspect of the utility model, a bend forming tool is provided. The bending forming tool comprises:

A ring portion;

The tooth parts are arranged on the ring part, an avoidance groove is formed in one end, deviating from the ring part, of each tooth part, and the avoidance groove is suitable for avoiding workpieces.

Optionally, the plurality of teeth are disposed at intervals at one axial end of the ring portion, and the teeth are disposed obliquely along the circumferential direction of the ring portion.

Optionally, the tooth portion is equipped with the pushing surface, the pushing surface with the ring portion is the obtuse angle, dodge the first end in the groove be connected in the pushing surface, dodge the groove still include with the second end that the first end set up relatively, dodge the bottom surface in groove to the distance of ring portion by first end to the second end increases gradually.

Optionally, the bottom surface of the avoidance groove is an inclined surface.

Optionally, the bottom surfaces of the avoidance grooves and the ring part have the same included angle.

Optionally, an abutment surface is provided at an end of the tooth portion facing away from the pushing surface, and the abutment surface forms an acute angle with the ring portion.

Optionally, a connection surface is provided between the abutment surface and the pushing surface, and the second end is connected to the connection surface.

Optionally, the connection surface has a third end connected to the abutment surface and a fourth end opposite to the third end, and the distance from the connection surface to the ring portion gradually increases from the third end to the fourth end.

Optionally, a clamping groove is formed between the abutment surface and the ring portion, the clamping groove being adapted to receive an end portion of the workpiece.

Optionally, a chamfer is formed at the junction of the abutment surface and the ring.

The bending forming tool has the technical effects that the plurality of tooth parts are arranged on the ring part, the avoiding grooves are formed in one end, away from the ring part, of the tooth parts, when the bending forming tool bends a workpiece, the avoiding grooves can avoid the workpiece so as to improve the bending degree of the workpiece, the length of the workpiece can be shortened more, the workpiece is accommodated in the avoiding grooves, and the effect of reducing the warp deflection of the workpiece can be achieved.

Other features of the present utility model and its advantages will become apparent from the following detailed description of exemplary embodiments of the utility model, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description, serve to explain the principles of the utility model.

Fig. 1 is a schematic structural diagram of a bending tool according to an embodiment of the present application.

Fig. 2 is an enlarged view at a shown in fig. 1.

Fig. 3 is a schematic structural diagram of a bending tool and a winding in cooperation with each other according to an embodiment of the present application.

Fig. 4 is an enlarged view at B shown in fig. 3.

Fig. 5 is a schematic process diagram of a bending tool according to an embodiment of the present application.

Reference numerals:

1. A ring portion;

2. A tooth portion; 21. a pushing surface; 22. an avoidance groove; 221. a first end; 222. a second end; 24. a connection surface; 25. an abutment surface; 26. a clamping groove;

3. and (3) winding.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present utility model unless it is specifically stated otherwise.

The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the utility model, its application, or uses.

Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.

In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.

According to one embodiment of the application, a bending forming tool is provided. As shown in fig. 1 to 5, the bending forming tool comprises a ring part 1 and a plurality of tooth parts 2. The plurality of tooth portions 2 are arranged on the ring portion 1, an avoidance groove 22 is formed in one end, deviating from the ring portion 1, of the tooth portions 2, and the avoidance groove 22 is suitable for avoiding workpieces.

In this example, a plurality of teeth 2 are attached to the ring portion 1, and the teeth 2 are provided with escape grooves 22 at one end facing away from the ring portion 1. The shaping frock of bending when bending the work piece, dodges groove 22 and can play dodging the effect to the work piece, avoided tooth 2 too early to form with the work piece and interfere, cause the shaping frock of bending unable work piece of bending effectively, like this, dodge the setting up of groove 22 has improved the degree of bending of shaping frock to the work piece of bending to the length of shortening the work piece that can be more, the work piece holds in dodging groove 22 moreover, can play the effect of reducing work piece warp offset.

For example, the workpiece in the application can be a winding 3, and the bending forming tool can bend the welding end of the winding 3 so as to reduce the length of the winding 3 along the axial direction, thereby reducing the size of the winding 3 and enabling the structure of the winding 3 to be more compact. When the winding 3 is bent, the winding 3 can be accommodated in the escape groove 22, and the warp offset of the winding 3 can be reduced.

In this example, as shown in fig. 3 to 5, the teeth 2 are provided in plurality, and the welding end of each winding 3 is located between two teeth 2. The bending process is performed first, and the bending forming tool rotates along the second circumferential direction and moves along the first axial direction at the same time, so that the tooth part 2 can push the winding 3 to bend. When the winding 3 is bent to a certain degree, the bending process is performed, and at this time, the bending forming tool stops rotating and moves only along the first axial direction so as to bend the winding 3.

According to the bending forming tool, the avoidance groove 22 is formed in one end, away from the ring part 1, of the tooth part 2, when the winding 3 is bent, the winding 3 can be embedded into the avoidance groove 22, namely, the avoidance groove 22 can play a role in avoiding the winding 3, so that the phenomenon that the tooth part 2 and the winding 3 interfere prematurely to cause that the bending forming tool cannot effectively bend the winding is avoided. The bending forming tool can axially shorten the winding 3 by more than 15 mm. In addition, the winding 3 is embedded into the avoidance groove 22, so that the limiting effect on the winding 3 can be achieved, and the winding 3 is prevented from sliding out of the bending forming tool.

In this example, as shown in fig. 1, a plurality of the teeth 2 are provided at intervals at one end of the ring portion 1 in the axial direction, and the teeth 2 are provided obliquely in the circumferential direction of the ring portion 1. For example, the plurality of teeth 2 are uniformly arranged at one end of the ring portion 1 in the first axial direction at intervals, and each tooth 2 is obliquely arranged in the first circumferential direction. A gap is formed between two adjacent teeth 2, and the welding end of the winding 3 can extend into the gap. The plurality of teeth 2 are evenly arranged at intervals, and the inclination angles of the teeth are the same, so that the windings 3 are pushed and bent conveniently, and the bending degree of each winding 3 can be kept consistent.

Of course, the manner of disposing the tooth portion 2 is not particularly limited, and those skilled in the art can determine the actual situation.

In this example, the tooth portion 2 may be integrally formed with the ring portion 1, for example, the tooth portion 2 and the ring portion 1 may be formed by mold forming, which is easy to process and saves costs. The tooth 2 may be connected to the ring 1 by a fastener such as a screw or a bolt, or the tooth 2 may be fixedly connected to the ring 1 by welding or bonding. Those skilled in the art will recognize the actual situation, and are not particularly limited herein.

In one example, as shown in fig. 1 and 2, the tooth 2 is provided with a pushing surface 21, the pushing surface 21 being at an obtuse angle to the ring 1. The first end 221 of the avoidance groove 22 is connected to the pushing surface 21, the avoidance groove 22 further includes a second end 222 opposite to the first end 221, and a distance from the bottom surface of the avoidance groove 22 to the ring portion 1 gradually increases from the first end 221 to the second end 222.

As shown in fig. 1 and 2, in this example, the tooth 2 is also provided with a pushing surface 21. The opposite ends of the avoidance groove 22 are provided with a first end 221 and a second end 222, the first end 221 of the avoidance groove 22 is connected with the pushing surface 21, that is, the opposite ends of the avoidance groove 22 are provided with openings, and the bottom surface of the avoidance groove 22 is obliquely arranged along the first circumferential direction. In the push bending process, the push surface 21 can push the winding 3 to bend. In the bending step, the tooth 2 can move in the first axial direction to bend the winding 3, and the winding 3 can be fitted into the escape groove 22, so that the bending angle of the winding 3 can be increased.

In this example, as shown in fig. 2, one end of the pushing surface 21 is connected to the ring portion 1, and the angle between the pushing surface 21 and the ring portion 1 is an obtuse angle. That is, the pushing surface 21 is disposed obliquely in the first circumferential direction with respect to the ring portion 1. In the push bending step, the tooth portion 2 rotates in the second circumferential direction, and the push surface 21 can push the winding 3 to be bent. The ends of the windings 3 can slide along the push surface 21. By arranging the pushing member obliquely, the winding 3 can be pushed more smoothly.

In one example, the bottom surface of the relief groove 22 is sloped. And the distance from the bottom surface of the escape groove 22 to the ring portion 1 gradually increases from the first end 221 to the second end 222.

Alternatively, the bottom surface of the avoiding groove 22 may be an arc surface, etc., and those skilled in the art will be able to determine the actual situation, and the present invention is not limited thereto.

In one example, the bottom surfaces of the avoidance grooves 22 have the same angle with the ring portion 1. So that the bending forming tool is convenient for bending the windings 3 in a pushing bending process, and the bending degree of each winding 3 can be kept consistent.

In one example, as shown in fig. 2, an end of the tooth portion 2 facing away from the pushing surface 21 is provided with an abutment surface 25, and the abutment surface 25 forms an acute angle with the ring portion.

As shown in fig. 2 to 4, in this example, the tooth 2 is provided with an abutment surface 25, the abutment surface 25 being located at an end facing away from the push surface 21. The abutment surface 25 is disposed at an acute angle to the ring. In the bending process, the bending tool is moved in the first axial direction to bend the winding 3. The welding end of the winding 3 can abut against the abutment surface 25, and at this time, the winding 3 has been bent to a predetermined position.

In one example, as shown in fig. 2, a connection surface 24 is disposed between the abutment surface 25 and the pushing surface 21, and the second end 222 is connected to the connection surface 24.

As shown in fig. 2 to 4, in this example, one end of the connection surface 24 may be connected to the abutment surface 25, and the second end 222 of the escape groove 22 is connected to the connection surface 24. In the push bending process, the ring part 1 rotates in the second circumferential direction, and the end portions of the windings 3 can slide into the adjacent gaps along the connection surfaces 24.

The second end 222 of the escape groove 22 is open, one end of the connection surface 24 is connected to the bottom wall of the escape groove 22, and the other end of the connection surface 24 is connected to the abutment surface 25. When the ring part 1 rotates along the second circumferential direction, the end part of the winding 3 can slide to the connecting surface 24 along the bottom wall of the avoidance groove 22, the avoidance groove 22 can play a limiting role on the winding 3, and the winding 3 is prevented from being separated from the tooth part 2. The ends of the windings 3 can also slide along the connection faces 24 as in the adjacent further gap.

In one example, as shown in fig. 2, the connection surface 24 has a third end connected to the abutment surface 25, and a fourth end opposite to the third end, and the distance from the connection surface 24 to the ring portion 1 increases gradually from the third end to the fourth end.

As shown in fig. 2, opposite ends of the connection surface 24 are provided as a third end and a fourth end, respectively. The third end is connected to the abutment surface and the fourth end is connected to the second end 222 of the relief groove 22. The distance from the connection surface 24 to the ring portion 1 increases gradually from the third end to the fourth end. That is, the connection surface 24 is disposed obliquely. In the push bending process, the ring part 1 rotates in the second circumferential direction, and the end portions of the windings 3 can slide into the adjacent gaps along the connection surfaces 24. By providing the connection surface 24 obliquely, the end portion of the winding 3 can be slid into the adjacent other gap more smoothly.

In one example, as shown in fig. 2 to 4, a clamping groove 26 is formed between the abutment surface 25 and the ring portion 1, the clamping groove 26 being adapted to receive an end portion of the workpiece.

As shown in fig. 2 to 4, in this example, one end of the abutment surface 25 is connected to one end of the ring portion 1 in the axial direction, and the abutment surface 25 is inclined so as to form a clamping groove 26 with the ring portion 1, and is adapted to accommodate an end portion of the winding 3.

In the bending process, the ring portion 1 is moved in the first axial direction to bend the winding 3. The welding end part of the winding 3 can be embedded into the clamping groove 26 so as to limit the winding 3, and the end part of the winding 3 can be further prevented from being separated from the bending forming tool. One side of the welding end of the winding 3 is abutted against the ring portion 1, and the opposite side is abutted against the abutment surface 25.

In one example, as shown in fig. 2 to 4, the junction of the abutment surface 25 and the ring portion 1 is chamfered.

As shown in fig. 2 to 4, in this example, an end of the abutment surface 25 remote from the connection surface 24 is connected to the ring portion 1. The junction of the abutment surface 25 and the ring portion 1 forms a chamfer. Namely, the abutment surface 25 and the ring portion are connected by an arc structure. Stress concentration can be avoided so as to improve the strength of the tooth 2.

In this example, the connection between the abutment surface 25 and the ring portion 1 is chamfered, so that the shape of the clamping groove 26 can be matched with the welding end of the winding 3, so that the welding end of the winding 3 can be just embedded in the clamping groove 26, the winding 3 can be bent to the maximum extent, and the length of the winding 3 in the axial direction can be reduced to a greater extent.

Alternatively, in this example, the connection structure between the contact surface 25 and the ring portion 1 may be a flat surface, or the like, so long as the shape of the clamping groove 26 can be matched with the welding end of the winding 3, so that the welding end of the winding 3 can be just embedded in the clamping groove 26. Those skilled in the art will recognize the actual situation, and are not particularly limited herein.

The foregoing embodiments mainly describe differences between the embodiments, and as long as there is no contradiction between different optimization features of the embodiments, the embodiments may be combined to form a better embodiment, and in consideration of brevity of line text, no further description is given here.

While certain specific embodiments of the utility model have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the utility model. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the utility model. The scope of the utility model is defined by the appended claims.

Claims (10)

1. Bending forming tool, its characterized in that includes:

A ring part (1);

The plurality of tooth portions (2) are arranged on the ring portion (1), an avoidance groove (22) is formed in one end, deviating from the ring portion (1), of each tooth portion (2), and the avoidance groove (22) is suitable for avoiding workpieces.

2. The bending tool as claimed in claim 1, wherein the plurality of teeth (2) are provided at intervals at one axial end of the ring (1), and the teeth (2) are provided obliquely along the circumferential direction of the ring (1).

3. The bending forming tool according to claim 2, wherein the tooth portion is provided with a pushing surface (21), the pushing surface (21) and the ring portion (1) form an obtuse angle, a first end of the avoidance groove (22) is connected to the pushing surface, the avoidance groove (22) further comprises a second end opposite to the first end, and a distance from a bottom surface of the avoidance groove (22) to the ring portion gradually increases from the first end to the second end.

4. A bending tool according to claim 3, wherein the bottom surface of the relief groove (22) is a bevel.

5. The bending tool as claimed in claim 4, wherein the bottom surfaces of the plurality of relief grooves (22) are at the same angle as the ring (1).

6. A bending tool according to claim 3, wherein an end of the tooth (2) facing away from the pushing surface (21) is provided with an abutment surface (25), the abutment surface (25) being at an acute angle to the ring.

7. The bending tool as claimed in claim 6, wherein a connection surface (24) is provided between the abutment surface (25) and the pushing surface (21), and the second end (222) is connected to the connection surface (24).

8. Bending tool according to claim 7, wherein the connection surface (24) has a third end connected to the abutment surface (25) and a fourth end opposite to the third end, the distance from the connection surface (24) to the ring (1) increasing from the third end to the fourth end.

9. Bending tool according to claim 6, characterized in that a clamping groove (26) is formed between the abutment surface (25) and the ring (1), the clamping groove (26) being adapted to receive an end of the workpiece.

10. Bending tool according to claim 6, characterized in that the junction of the abutment surface (25) and the ring (1) is chamfered.