Motor stator flat copper wire shaping device

Abstract

The utility model relates to a motor stator flat copper wire shaping device, and belongs to the technical field of motor manufacturing equipment. Comprising a machine frame, a lifting air cylinder, an upper forming die and a lower forming die, the machine frame is in a U shape, the lifting air cylinder is installed on the top of the machine frame, the lower forming die is installed in the machine frame through a locking piece, and the upper forming die is installed on a piston rod of the lifting air cylinder corresponding to the lower forming die. The upper forming die and the lower forming die are inserted in a matched mode to achieve bending and shaping of the flat copper wire. The motor stator flat copper wire shaping device effectively solves the problems that in the prior art, in the flat copper wire shaping process, the manual labor amount is large, the shaping work efficiency is low, and the consistency is poor.

Description

Technical Field

[0001] The utility model relates to a shaping device for flat copper wires of a motor stator, belonging to the technical field of motor manufacturing equipment. Background Art

[0002] During the production process of a motor, the stator winding of the motor is usually wound by multiple flat copper wires, and the flat copper wires are usually in the shape of hairpins. In order to meet the shape requirements of the stator slots, the flat copper wires need to be bent and shaped before they can be inserted into the stator slots.

[0003] The shaping of existing flat copper wires mostly relies on manual bending and adjustment using pliers by workers. This shaping method has low efficiency and high manual labor intensity. On the other hand, due to individual differences, it is difficult to ensure the consistency of manual shaping, which will cause difficulties in the subsequent assembly process, and even affect the reliability and service life of the motor, and cannot meet the requirements of modern motor production for high efficiency and high quality. Therefore, it is necessary to improve it. Summary of the Invention

[0004] The purpose of the utility model is to provide a shaping device for flat copper wires of a motor stator to solve the problems of large manual labor volume, low shaping work efficiency and poor consistency in the prior art for shaping flat copper wires.

[0005] The technical solution of the utility model is as follows:

[0006] A shaping device for flat copper wires of a motor stator includes a frame, a lifting cylinder, an upper shaping die and a lower shaping die. It is characterized in that: the frame is in a "C" shape, the lifting cylinder is installed on the top of the frame, the lower shaping die is installed inside the frame through a locking piece, the upper shaping die is installed on the piston rod of the lifting cylinder corresponding to the lower shaping die, and the upper shaping die and the lower shaping die cooperate and are inserted to realize the bending and shaping of the flat copper wires.

[0007] The upper shaping die includes a positioning frame and a pressing plate. The positioning frame is a rectangular frame with one end being arc-shaped, and a pressing plate is fixedly installed on the positioning frame. The pressing plate is a long rectangular plate.

[0008] A pressing head is arranged at the middle position of the bottom edge of the positioning frame, and the cross section of the pressing head is triangular.

[0009] The lower shaping die includes a bottom module. The bottom module is a rectangular block. An arc-shaped groove is opened at one end of the bottom module. Positioning grooves are opened along the edge of the bottom module at both ends of the arc-shaped groove. The positioning grooves are communicated with the arc-shaped groove, and a让位槽 (letting-way groove) is opened on the bottom module between the two ends of the positioning grooves.

[0010] A shaping concave is arranged at the middle position of the inner bottom surface of the arc-shaped groove. The shaping concave corresponds to the pressing head, and the cross section of the shaping concave is triangular.

[0011] The locking piece includes a left positioning block and a right positioning block, which are fixedly installed on the frame at intervals. A left locking screw is threadedly installed on the left positioning block, and a right locking screw is threadedly installed on the right positioning block. The left locking screw and the right locking screw are in contact with the lower forming mold.

[0012] The beneficial effects of the present invention compared with the prior art are:

[0013] The motor stator flat copper wire shaping device can position the flat copper wire through the arc groove and positioning groove of the bottom module, and the piston rod of the lifting cylinder is extended to drive the upper forming mold to move downward until the arc-shaped end of the positioning frame of the upper forming mold is matched and plugged with the arc groove of the bottom module, and the other three straight ends of the positioning frame are respectively matched and plugged with the positioning groove and the give way groove of the bottom module. During this process, the pressure head contacts the flat copper wire first, and the pressure head is pressed into the forming recess, so as to bend and shape the arc section of the flat copper wire. Immediately afterwards, the positioning frame contacts the flat copper wire later, and the positioning frame cooperates with the bottom module to straighten the straight section of the flat copper wire, thereby completing the shaping of the entire flat copper wire. The motor stator flat copper wire shaping device effectively solves the problems of large manual labor, low shaping efficiency and poor consistency in the flat copper wire shaping process in the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a front view structural diagram of the utility model;

[0015] Figure 2 This is a side structural diagram of the present utility model;

[0016] Figure 3 for Figure 1 Schematic diagram of the cross-sectional structure along the AA direction;

[0017] Figure 4 for Figure 1 Schematic diagram of the cross-sectional structure along the BB direction;

[0018] Figure 5 This is a schematic diagram of the three-dimensional structure of the unshaped flat copper wire in the present invention;

[0019] Figure 6 This is a schematic diagram of the three-dimensional structure of the flat copper wire after shaping in the present invention.

[0020] In the figure: 1. Frame; 2. Lifting cylinder; 3. Left positioning block; 4. Right positioning block; 5. Left locking screw; 6. Right locking screw; 7. Bottom module; 8. Arc groove; 9. Positioning groove; 10. Clearance groove; 11. Positioning frame; 12. Pressing plate; 13. Pressing head; 14. Forming cavity; 15. Flat copper wire. DETAILED DESCRIPTION

[0021] As attached Figure 1-6 as shown

[0022] The shaping device for flat copper wire of the motor stator includes a frame 1, a lifting cylinder 2, an upper forming die and a lower forming die. The cross-section of the frame 1 is in a "C" shape. A lifting cylinder 2 is fixedly installed at the top of the frame 1. A locking member is installed inside the frame 1. The locking member includes a left positioning block 3 and a right positioning block 4. The left positioning block 3 and the right positioning block 4 are rectangular blocks. The left positioning block 3 and the right positioning block 4 are fixedly installed on the frame 1 at intervals. A left locking screw 5 is installed on the left positioning block 3 by threading, and a right locking screw 6 is installed on the right positioning block 4 by threading. During work, the left locking screw 5 and the right locking screw 6 are in contact connection with the lower forming die, so as to realize the clamping and fixing of the lower forming die, and at the same time facilitate the disassembly and installation of the lower forming die.

[0023] A lower forming die is clamped between the left positioning block 3 and the right positioning block 4 of the locking member. The lower forming die includes a bottom module 7. The bottom module 7 is a rectangular block. An arc-shaped groove 8 is opened on the upper surface of one end of the bottom module 7. Positioning grooves 9 are opened along the edge of the bottom module 7 at both ends of the arc-shaped groove 8. The positioning grooves 9 are in a long strip shape and are communicated with the arc-shaped groove 8. During work, the flat copper wire 15 is positioned through the positioning grooves 9 and the arc-shaped groove 8.

[0024] A relief groove 10 is opened on the bottom module 7 between both ends of the positioning groove 9. During work, the relief groove 10 facilitates the formation of a relief for the wire feet of the flat copper wire 15, so as to have enough space for the staff to pick up the flat copper wire 15 from the lower forming die, so as to facilitate the staff to manually replace the new flat copper wire 15 to be shaped.

[0025] An upper forming die is installed on the piston rod of the lifting cylinder 2 corresponding to the lower forming die. The upper forming die includes a positioning frame 11 and a pressing plate 12. A pressing plate 12 is fixedly installed on the positioning frame 11. The pressing plate 9 is a long strip rectangular plate and is fixedly connected to the piston rod of the lifting cylinder 2. During work, the piston rod of the lifting cylinder 2 drives the positioning frame 11 and the pressing plate 12 to move up or down.

[0026] The positioning frame 11 is a rectangular frame with one end being arc-shaped. The arc-shaped end of the positioning frame 11 is in fit and insertion with the arc-shaped groove 8 of the bottom module 7. The other three straight ends of the positioning frame 11 are respectively in corresponding fit and insertion with the positioning groove 9 and the relief groove 10 of the bottom module 7. During work, the flat copper wire 15 can be pressed and positioned by the other three straight ends of the positioning frame 11 being respectively in corresponding fit and insertion with the positioning groove 9 and the relief groove 10 of the bottom module 7.

[0027] A pressing head 13 is provided in the middle position of the bottom edge of one arc-shaped end of the positioning frame 11, and the cross-section of the pressing head 13 is triangular. A forming recess 14 is provided in the middle position of the bottom surface of the arc-shaped groove 8 of the bottom module 7. The forming recess 14 is provided corresponding to the pressing head 13, and the cross-section of the forming recess 14 is triangular. When working, the pressing head 13 of the upper forming mold and the forming recess 14 of the lower forming mold are pressed together to realize the bending and shaping of the flat copper wire 15.

[0028] When the motor stator flat copper wire shaping device is used, first place the flat copper wire 15 to be bent and shaped in the arc groove 8 and the positioning groove 9 of the bottom module 7, so that the wire foot of the flat copper wire 15 extends to the give way groove 10, and then start the piston rod of the lifting cylinder 2 to extend. After the piston rod of the lifting cylinder 2 is extended, it drives the upper forming mold to move downward until the arc-shaped end of the positioning frame 11 of the upper forming mold is matched with the arc groove 8 of the bottom module 7, and the other three straight ends of the positioning frame 11 are respectively matched with the positioning groove 9 and the give way groove 10 of the bottom module 7. During this process, the pressure head 13 contacts the flat copper wire 15, and the pressure head 13 is pressed together with the forming concave 14 to bend and reshape the arc segment of the flat copper wire 15. Then, the positioning frame 11 contacts the flat copper wire 15, and the positioning frame 11 cooperates with the bottom module 7 to straighten the straight segment of the flat copper wire 15. The piston rod of the lifting cylinder 2 is controlled to reset, and then the shaped flat copper wire 15 is manually taken out and replaced with the next flat copper wire 15 to be shaped. In this way, the straightening work of the flat copper wire 15 can be repeated cyclically. The motor stator flat copper wire shaping device effectively solves the problems of large manual labor, low shaping efficiency and poor consistency in the shaping process of the flat copper wire 15 in the prior art.

Claims

1. A motor stator flat copper wire shaping device, comprising a frame (1), a lifting cylinder (2), an upper forming die and a lower forming die, characterized in that: The frame (1) is in a "C" shape. A lifting cylinder (2) is installed at the top of the frame (1). Inside the frame (1), a lower forming die is installed through a locking member. An upper forming die is installed on the piston rod of the corresponding lifting cylinder (2) of the lower forming die. The upper forming die and the lower forming die are inserted and matched to realize the bending and shaping of the flat copper wire (15); the upper forming die includes a positioning frame (11) and a pressing plate (12). The positioning frame (11) is a rectangular frame with one end being arc-shaped. A pressing plate (12) is fixedly installed on the positioning frame (11). The pressing plate (12) is a long rectangular plate; a pressing head (13) is arranged at the middle position of the bottom edge of the bottom surface of the positioning frame (11). The cross-section of the pressing head (13) is triangular; the lower forming die includes a bottom module (7). The bottom module (7) is a rectangular block. An arc-shaped groove (8) is opened at one end of the bottom module (7). Positioning grooves (9) are opened along the edge of the bottom module (7) at both ends of the arc-shaped groove (8). The positioning grooves (9) are communicated with the arc-shaped groove (8). A relief groove (10) is opened on the bottom module (7) between the two ends of the positioning grooves (9).

2. The motor stator flat copper wire shaping device according to claim 1, characterized in that: A forming concave (14) is arranged at the middle position of the inner bottom surface of the arc-shaped groove (8). The forming concave (14) is arranged corresponding to the pressing head (13). The cross-section of the forming concave (14) is triangular.

3. The motor stator flat copper wire shaping device according to claim 1, characterized in that: The locking member includes a left positioning block (3) and a right positioning block (4). The left positioning block (3) and the right positioning block (4) are fixedly installed on the frame (1) at intervals. A left locking screw (5) is installed on the left positioning block (3) by threading. A right locking screw (6) is installed on the right positioning block (4) by threading. The left locking screw (5) and the right locking screw are in抵触连接 with the lower forming die. (It seems there is a mistake in the original text here. Maybe it should be "in contact connection" instead of "抵触连接".)

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