Straight line part bending angle forming clamp of hard winding coil

Abstract

The utility model relates to a bending angle forming clamp for a straight line part of a hard winding coil, which is characterized by comprising a bending angle clamping plate with 90-degree arc bending angles at two ends, a forming module matched with the bending angle clamping plate to clamp and bend the straight line part of the hard winding coil, and a height adjusting block arranged on the forming module, the bent angle clamping plate and the forming module are oppositely arranged, are respectively connected with the power equipment, are close to each other along with the movement of the power equipment and clamp the linear part, the bent angle clamping plate and the forming module clamp the linear part in the width direction, and the bent angle clamping plate and the height adjusting block clamp the linear part in the height direction. According to the utility model, one set of clamp is used for synchronously forming two bent angles, so that the interference between clamps is avoided, the clamp is suitable for clamping and forming the coil bent angles with shorter straight line parts, the operation requirements of forming the bent angles of the straight line parts of small-size coils are met, the bent angle forming requirements of the straight line parts of hard winding coils with various specifications and sizes are met, and the practicability of the clamp is improved.

Description

Technical Field

[0001] This utility model relates to a bending fixture for the straight section of a hard-wound coil, used for bending and shaping the straight section of a hard-wound coil. Background Technology

[0002] Traction motors all adopt a molded hard winding structure. During the molding process, a clamp is used to bend the straight part of the hard winding coil to form a bend. Two clamps are used to hold the two ends of the same straight part to form two bends. This method of using two clamps to hold the two ends of the straight part to form two bends is only suitable for bends of coils with longer straight parts. However, for coils with shorter straight parts, the distance between the two bends formed on the straight part is shorter. If two clamps are used to hold and form the coils separately, there will be interference between the two clamps, which will limit the molding process and cannot meet the requirements for bends of the straight parts of small coils. Utility Model Content

[0003] The present invention provides a clamp for forming the bends of the straight sections of hard-wound coils. It uses one set of clamps to form two bends simultaneously, avoiding interference between clamps. It is suitable for clamping and forming the bends of coils with shorter straight sections, meeting the operational requirements for forming the bends of the straight sections of small-sized coils. It also meets the requirements for forming the bends of the straight sections of hard-wound coils of various specifications and sizes, thus improving the practicality of the clamp.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] A forming fixture for bending the straight section of a hard-wound coil, characterized in that: it includes a bending clamping plate with 90-degree arc bends at both ends, a forming module that cooperates with the bending clamping plate to bend the straight section of the hard-wound coil, and a height adjustment block mounted on the forming module. The bending clamping plate and the forming module are arranged opposite to each other and are respectively connected to a power device. As the power device moves, the bending clamping plate and the forming module clamp the straight section along the width direction, and the bending clamping plate and the height adjustment block clamp the straight section along the height direction.

[0006] Preferably, the corner clamping plate extends rearward from the top surface to form an integrally formed connecting plate. The connecting plate is perpendicular to the corner clamping plate, and a wide strip hole for connecting to the power equipment is provided on the connecting plate. The wide strip hole is provided along the width direction of the straight portion.

[0007] Preferably, the molding die includes a mating clamping plate that mates with the corner clamping plate and a module body that is perpendicularly fixed to the mating clamping plate. The two ends of the mating clamping plate are arc end faces that mate with the 90-degree arc corner of the corner clamping plate. The module body has connection holes for connecting to the power equipment. The height adjustment block is connected to the mating clamping plate by bolts.

[0008] Preferably, the mating clamping plate has a height strip hole along the height direction of the straight component, and the height adjusting block has an adjusting block thread hole corresponding to the height strip hole. The height adjusting block is in close contact with the mating clamping plate, and its end is an arc bend that fits with the mating clamping plate.

[0009] Preferably, the clamping plate includes a clamping plate body that is vertically fixed to the module body, and detachable arc-shaped mating blocks that are mounted on the left and right ends of the clamping plate body and mate with the 90-degree arc corner of the corner clamping plate. A height strip hole is opened on the clamping plate body, and the distance between the two arc-shaped mating blocks is adjustable.

[0010] Preferably, the left and right ends of the clamping plate body are respectively provided with connecting strips that connect to the arc mating blocks, the connecting strips are provided with spacing adjustment strip holes, and the arc mating blocks are provided with mating block threaded holes corresponding to the spacing adjustment strip holes.

[0011] The beneficial effects of this utility model are:

[0012] This invention relates to a forming fixture for bending the straight section of a hard-wound coil. The forming module and the bending clamping plate are connected to a power device and positioned opposite each other. Before forming, the straight section of the hard-wound coil is positioned between the forming module and the bending clamping plate. When the power device moves the forming module and the bending clamping plate closer together to clamp the straight section of the hard-wound coil, the 90-degree arc bends at both ends of the bending clamping plate cooperate with the forming module to bend the straight section, forming two bends. This achieves simultaneous forming of the two bends in the straight section, avoiding the need for two separate fixtures. One fixture simultaneously forms both bends, preventing interference between fixtures and adapting to coils with shorter straight sections. The clamping and forming mechanism meets the operational requirements for bending the straight sections of small-sized coils. The bending clamping plate and forming module clamp the straight section along its width, while the bending clamping plate and height adjustment block clamp the straight section along its height. Together, they form a clamping cavity for the straight section. The width of the clamping cavity is adjusted by changing the distance between the bending clamping plate and the forming module to accommodate bending of coils of different widths. Similarly, the height of the clamping cavity is adjusted by changing the distance between the bending clamping plate and the height adjustment block to accommodate bending of coils of different heights. This mechanism meets the bending requirements for straight sections of hard-wound coils of various sizes, improving the practicality of the fixture. Attached Figure Description

[0013] Figure 1 This is a cross-sectional view of the straight section of the rigid winding coil of this utility model, which is held by a bending and forming fixture.

[0014] Figure 2 This is a top view of the corner clamping plate.

[0015] Figure 3 This is a front view of the molding module in Example 1.

[0016] Figure 4 This is a side view of the molding module in Example 1.

[0017] Figure 5 This is a top view of the molding module in Example 1.

[0018] Figure 6 This is a schematic diagram of the height adjustment block.

[0019] Figure 7 This is a side view of the clamping plate in Embodiment 2.

[0020] Figure 8 This is a top view of the clamping plate used in Embodiment 2.

[0021] Figure 9 This is a side view of the circular arc mating block. Detailed Implementation

[0022] The following is combined Figures 1-9 The embodiments of this utility model will be described in detail below. Example 1:

[0023] A forming fixture for bending the straight section of a hard-wound coil, characterized in that: it includes a bending clamping plate 1 with 90-degree arc bends 10 at both ends, a forming module 2 that cooperates with the bending clamping plate 1 to bend the straight section 100 of the hard-wound coil, and a height adjusting block 3 mounted on the forming module 2. The bending clamping plate 1 and the forming module 2 are arranged opposite to each other and are respectively connected to a power device. As the power device moves, the bending clamping plate 1 and the forming module 2 clamp the straight section 100 along the width direction, and the bending clamping plate 1 and the height adjusting block 3 clamp the straight section 100 along the height direction.

[0024] The above-described fixture for forming the bends of the straight section of a hard-wound coil has a forming module 2 and a bend clamping plate 1 connected to a power device and positioned opposite each other. Before forming, the straight section of the hard-wound coil is positioned between the forming module 2 and the bend clamping plate 1. When the power device moves the forming module 2 and the bend clamping plate 1 closer together to clamp the straight section 100 of the hard-wound coil, the 90-degree arc bends 10 at both ends of the bend clamping plate 1 cooperate with the forming module to bend the straight section 100, forming two bends on the straight section 100. This achieves one-time clamping and forming of the two bends of the straight section, avoiding the need for two sets of fixtures to clamp and form the two bends separately. One set of fixtures forms the two bends simultaneously, avoiding interference between fixtures and adapting to the clamping and forming of coil bends with shorter straight sections. This fixture meets the operational requirements for bending the straight sections of small-sized coils. The bending clamping plate 1 and forming module 2 clamp the straight section 100 along the width direction, while the bending clamping plate 1 and height adjusting block 3 clamp the straight section 100 along the height direction. Together, they form a clamping cavity 4 for holding the straight section 100. The width of the clamping cavity 4 is adjusted by changing the distance between the bending clamping plate 1 and the forming module 2 to accommodate bending the straight sections of coils with different widths. Similarly, the height of the clamping cavity 4 is adjusted by changing the distance between the bending clamping plate 1 and the height adjusting block 3 to accommodate bending the straight sections of coils with different heights. This fixture meets the bending requirements for straight sections of hard-wound coils of various sizes, improving its practicality.

[0025] The corner clamping plate 1 extends rearward from the top surface into an integrally formed connecting plate 11. The connecting plate 11 is perpendicular to the corner clamping plate 1. A wide strip hole 12 for connecting to the power equipment is formed on the connecting plate 11. The wide strip hole 12 is formed along the width direction of the straight portion 100. The position of the corner clamping plate 1 on the power equipment is adjusted by the wide strip hole 12, thereby adjusting the width of the clamping cavity 4 to accommodate the corner forming of the straight portion of coils with different widths.

[0026] The forming mold 2 includes a mating clamping plate 21 that cooperates with the corner clamping plate 1, and a module body 22 that is perpendicularly fixed to the mating clamping plate 21. The two ends of the mating clamping plate 21 are arc-shaped end faces that cooperate with the 90-degree arc angle 10 of the corner clamping plate 1. The module body 22 has connection holes for connecting to a power device. A height adjustment block 3 is connected to the mating clamping plate 21 by bolts. The module body 22 is used to connect to the power device, and the mating clamping plate 21 is used to cooperate with the corner clamping plate to bend the straight portion 100.

[0027] The clamping plate 21 has a height strip hole 23 along the height direction of the straight component. The height adjusting block 3 has an adjusting block threaded hole 31 corresponding to the height strip hole 23. The height adjusting block 3 is in close contact with the clamping plate 21, and its end is an arc-shaped bend that fits into the clamping plate 21. As shown in the figure, the clamping plate 21 is an integral structure. The height adjusting block 3 is mounted on the height strip hole 23 through the adjusting block threaded hole 31. Adjusting the position of the adjusting block threaded hole 31 along the height strip hole 23 can adjust the distance between the height adjusting block 3 and the bend clamping plate 1, which is to adjust the height of the clamping cavity 4, so as to adapt to the bend forming of the straight part of the coil of different heights and meet the bend forming requirements of the straight part of the hard winding coil of various specifications and sizes. Example 2:

[0028] The difference from Embodiment 1 is that the clamping plate 21 in Embodiment 2 is a split structure. The clamping plate 21 includes a clamping plate body 5 that is vertically fixed to the module body 22, and detachable arc-shaped mating blocks 6 that are mounted on the left and right ends of the clamping plate body 5 and engage with the 90-degree arc angles of the corner clamping plate 1. A height strip hole 23 is formed on the clamping plate body 5, and the distance between the two arc-shaped mating blocks 6 is adjustable. The detachable arc-shaped mating blocks 6 on the clamping plate body 5 engage with the 90-degree arc angles at both ends of the corner clamping plate 1 to clamp the straight section 100 and form two bends. The distance between the two arc-shaped mating blocks 6 is adjustable to adjust the distance between the two bends formed on the straight section 100. After the distance between the two arc-shaped mating blocks 6 is adjusted to the correct position, the corner clamping plate 1 and the height adjustment block 3 need to be replaced so that the corner clamping plate 1 and the height adjustment block 3 can be adapted to the clamping plate 21.

[0029] The clamping plate body 5 has connecting strips 51 at its left and right ends, which are connected to the arc-shaped mating blocks 6. The connecting strips 51 have spacing adjustment slots 52, and the arc-shaped mating blocks 51 have mating block threaded holes 61 corresponding to the spacing adjustment slots 52. By bolting the spacing adjustment slots 52 and the mating block threaded holes 61, the spacing between the two arc-shaped blocks 6 is adjusted according to the connection position of the mating block threaded holes 61 within the spacing adjustment slots 52. In other words, the arc-shaped mating blocks 6 can move along the spacing adjustment slots 52 on the connecting strips 51 to adjust the spacing between the two arc-shaped mating blocks 6, satisfying the different spacing requirements of the two bends on the straight section 100.

[0030] The technical solutions of the embodiments of this utility model have been fully described above with reference to the accompanying drawings. It should be noted that the described embodiments are only a part of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

Claims

1. A fixture for forming the bend in the straight section of a hard-wound coil, characterized in that: It includes a corner clamping plate with 90-degree arc bends at both ends, a forming module that cooperates with the corner clamping plate to bend the straight part of the hard-wound coil, and a height adjustment block mounted on the forming module. The corner clamping plate and the forming module are arranged opposite to each other and are respectively connected to the power equipment. As the power equipment moves, they approach and clamp the straight part. The corner clamping plate and the forming module clamp the straight part along the width direction, and the corner clamping plate and the height adjustment block clamp the straight part along the height direction.

2. The straight section bending fixture for a hard-wound coil according to claim 1, characterized in that: The corner clamping plate extends backward from the top surface to form an integrally formed connecting plate. The connecting plate is perpendicular to the corner clamping plate. A wide strip hole for connecting to the power equipment is opened on the connecting plate. The wide strip hole is opened along the width direction of the straight part.

3. The straight section bending fixture for a hard-wound coil according to claim 1, characterized in that: The molding module includes a mating clamping plate that mates with the corner clamping plate, and a module body that is vertically fixed to the mating clamping plate. The two ends of the mating clamping plate are arc end faces that mate with the 90-degree arc corner of the corner clamping plate. The module body has connection holes for connecting to the power equipment. The height adjustment block is connected to the mating clamping plate by bolts.

4. The straight section bending fixture for a hard-wound coil according to claim 3, characterized in that: The clamping plate has a height strip hole along the height direction of the straight component, and the height adjustment block has a corresponding adjustment block thread hole. The height adjustment block is in close contact with the clamping plate, and its end is an arc bend that fits with the clamping plate.

5. The straight section bending fixture for a hard-wound coil according to claim 4, characterized in that: The clamping plate includes a clamping plate body that is vertically fixed to the main body of the module, and detachable arc-shaped mating blocks that are mounted on the left and right ends of the clamping plate body and mate with the 90-degree arc corner of the corner clamping plate. A height strip hole is opened on the clamping plate body, and the distance between the two arc-shaped mating blocks is adjustable.

6. The straight section bending fixture for a hard-wound coil according to claim 5, characterized in that: The clamping plate body has connecting strips at its left and right ends that connect to the arc-shaped mating blocks. The connecting strips have spacing adjustment slots, and the arc-shaped mating blocks have mating block threaded holes corresponding to the spacing adjustment slots.

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