A pre-shaping device

Abstract

The present invention discloses a pre-shaping device, comprising a machine body, a locking device and a shaping device are arranged on the machine body; the locking device comprises a fixed die and at least two pressing plates, the fixed die is arranged on the machine body, and a accommodating cavity for placing a stator is opened on the fixed die; the pressing plate is connected with a first driving member, and the first driving member can push the pressing plate close to or away from the accommodating cavity so that the pressing plate locks the stator; the shaping device comprises an upper die assembly, a lower die assembly and a second driving member, and the locking device can move between the upper die assembly and the lower die assembly; the upper die assembly and the lower die assembly both comprise a shaping assembly, and the shaping assembly comprises a seat body and a push rod, and the two seat bodies are respectively mounted on the upper die assembly and the lower die assembly; the second driving member is connected to the two seat bodies to push the two seat bodies to move toward each other; the push rod is arranged on the seat body, and the push rod can be inserted into the stator. The present invention can make the wires at the ends of the coil close to each other, so as to facilitate the processing of the later process.

Description

Technical Field

[0001] The invention relates to the field of stator processing equipment, and in particular to a pre-shaping device. Background Art

[0002] In the process of winding the new energy motor, the winding is carried out by embedding the wire in batches, which will cause the diameter of the wire package to be larger than the outer diameter of the stator, so the stator cannot be removed from the fixture that fixes the stator. Therefore, it is necessary to shape the stator after embedding the wire, so that the outer enameled wires are closely attached to each other, and the size after shaping is smaller than the outer diameter of the stator, so as to facilitate the processing of the later process. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a pre-shaping device, which can make the wires at the ends of the coil close to each other, so as to facilitate the processing in the later process.

[0004] In order to solve the above technical problems, the present invention provides a pre-shaping device, comprising a machine body, on which a locking device and a shaping device are arranged; the locking device comprises a fixed mold and at least two pressing plates, the fixed mold is arranged on the machine body, and a receiving cavity for placing a stator is opened on the fixed mold; the pressing plate is connected to a first driving member, and the first driving member can push the pressing plate to approach or move away from the receiving cavity so that the pressing plate locks the stator;

[0005] The shaping device includes an upper mold assembly, a lower mold assembly and a second driving member, and the locking device can move between the upper mold assembly and the lower mold assembly; the upper mold assembly and the lower mold assembly both include a shaping assembly, and the shaping assembly includes a seat body and a push rod, and the two seat bodies are respectively installed on the upper mold assembly and the lower mold assembly; the second driving member is connected to the two seat bodies to push the two seat bodies to move toward each other; the push rod is arranged on the seat body, and the push rod can be inserted into the stator.

[0006] Furthermore, the first driving member includes a turntable, a slide groove is provided on the turntable, and the pressure plate is connected to a slider; when the slider is embedded in the slide groove and moves, all the pressure plates can synchronously approach or move away from the accommodating cavity.

[0007] Furthermore, a power piece is provided on the fixed mold, and the turntable is connected to the power piece via a connecting rod.

[0008] Furthermore, a screw rod is provided on the fixed mold, the power member is connected with a docking member, and the docking member and the screw rod are threadedly matched.

[0009] Furthermore, a first sensor is provided on the fixed mold for detecting the stator.

[0010] Furthermore, the lower mold assembly includes a tapered sleeve, and the seat body is connected to the second driving member via the tapered sleeve.

[0011] Furthermore, the shaping component is arranged below the fixed mold, and the seat body is connected to the fixed mold via a resetting member.

[0012] Furthermore, a slide rail is provided on the machine body, and a sliding block cooperating with the slide rail is provided on the fixed mold.

[0013] Furthermore, a second sensor is provided on the machine body for detecting the fixed mold.

[0014] Furthermore, a plurality of guide wheels are arranged on the machine body, and the fixed mold is placed on the guide wheels, and the fixed mold is locked to the machine body through a locking piece.

[0015] Beneficial effects of the present invention:

[0016] When the locking device moves to between the upper die assembly and the lower die assembly, the second driving member drives the two seat bodies to move toward each other and continuously approach the stator until the seat body drives the push rod to be inserted into the stator; then the first driving member pushes the pressure plate, so that the pressure plate continuously approaches the fixture until the pressure plate and the fixture fit together; at this time, a pressure plate is pressed on the outside of the stator coil, and a push rod is set inside the coil, so the action force between the pressure plate and the push plate can be used to press the coil between the pressure plate and the push rod, thereby realizing pre-shaping of the coil. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The structure of the present invention is schematically shown in FIG. Figure 1 ;

[0018] Figure 2 The structure of the present invention is schematically shown in FIG. Figure 2 ;

[0019] Figure 3 yes Figure 2 A magnified view of part A;

[0020] Figure 4 It is a schematic diagram of the fixed mold in the present invention;

[0021] Figure 5 It is a schematic diagram of the pressure plate and the turntable in the present invention.

[0022] Explanation of the numbers in the figure: 1. Machine body; 11. Slide rail; 12. Guide wheel; 13. Second sensor; 14. Locking member; 2. Fixed mold; 21. Slide block; 22. First sensor; 3. Power member; 31. Connecting rod; 32. Docking member; 4. Press plate; 41. Sliding block; 5. Turntable; 51. Slide groove; 511. First end; 512. Second end; 6. Base; 61. Reset member; 7. Push rod; 8. Conical sleeve; 9. Second driving member. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and implement it, but the embodiments are not intended to limit the present invention.

[0024] Reference Figure 1-Figure 5 As shown, an embodiment of a pre-shaping device of the present invention includes a body 1, on which a locking device and a shaping device are sequentially arranged. First, a stator after winding and a clamp for locking the stator are placed in the locking device by a manipulator; then the locking device is driven to move to the working position of the shaping device, and the pre-shaping of the stator coil is realized through the cooperation of the locking device and the shaping device.

[0025] The locking device includes a fixed mold 2 and at least two pressing plates 4. The fixed mold 2 is arranged on the body 1, and a receiving cavity for placing the stator and the clamp is opened on the fixed mold 2. The pressing plate 4 is embedded in the fixed mold 2 and arranged around the receiving cavity. The pressing plate 4 is connected to a first driving member, and the first driving member can push the pressing plate 4 close to or away from the receiving cavity. When the pressing plate 4 approaches the receiving cavity under the push of the first driving member and fits with the outer side wall of the stator fixing clamp, the purpose of locking the stator with the pressing plate 4 can be achieved. At this time, the pressing plate 4 is located outside the stator coil. When the pressing plate 4 is pulled away from the receiving cavity by the first driving member, the pressing plate 4 and the fixing clamp are separated, thereby releasing the locking of the stator position. In this embodiment, the pressing plate 4 is arranged in an arc shape to increase the area when the pressing plate 4 and the fixing clamp are in contact, and to increase the stability when the pressing plate 4 and the stator are locked. In this embodiment, the bottom of the new energy stator slot is deep, and the outer diameter of the wire package is relatively large after the stator is embedded, and it is even larger than the outer diameter of the stator. As a result, the stator after wire embedding cannot meet the pre-shaping and subsequent intermediate shaping processes. Therefore, during pre-shaping, it is necessary to use the pressing plate 4 to reduce the outer diameter of the wire package to ensure that the stator can be removed from the stator tooling to ensure the processing of subsequent processes.

[0026] The first driving member includes a turntable 5, which is rotatably arranged on the fixed mold 2. An arc-shaped slide groove 51 is provided on the turntable 5, and a slider 41 cooperating with the slide groove 51 is connected to the pressure plate 4, and the slider 41 can be embedded in the slide groove 51 and move. In this embodiment, the slide grooves 51 are all opened in an arc shape, and the two ends of the slide grooves 51 are located in different circumferences. The end of the slide groove 51 close to the accommodating cavity is recorded as the first end 511, and the end of the slide groove 51 away from the accommodating cavity is recorded as the second end 512. When the slider 41 approaches the first end 511, all the pressing blocks are close to each other to lock the stator; when the slider 41 approaches the second end 512, all the pressing blocks are away from each other, and the stator is in an unlocked state. Therefore, when the slider 41 is embedded in the slide groove 51 and moves, it can drive all the pressure plates 4 to move synchronously close to or away from the accommodating cavity. In this embodiment, when the turntable 5 rotates counterclockwise, the slider 41 moves from the first end 511 to the second end 512, and all the pressing plates 4 gradually move away from the stator to release the locking of the fixing fixture by the pressing plates 4. Similarly, when the turntable 5 rotates clockwise, the slider 41 moves from the second end 512 to the first end 511, and all the pressing plates 4 gradually approach and abut against the fixing fixture to achieve locking of the stator.

[0027] The fixed mold 2 is provided with a power member 3, and the turntable 5 is connected to the power member 3 through a connecting rod 31. In this embodiment, the power member 3 is preferably a motor. The connecting rod 31 is driven to rotate by the power member 3, and the torque of the motor can be transmitted to the turntable 5 through the connecting rod 31, thereby driving the turntable 5 to rotate. In addition, a screw is provided on the fixed mold 2, and the power member 3 is connected to a docking member 32, and the docking member 32 and the screw thread cooperate. Therefore, the docking member 32 that cooperates with the screw thread can facilitate the adjustment of the position of the motor, so that it can be adjusted according to the position of the connecting rod 31 and the turntable 5 to improve the efficiency of torque transmission.

[0028] In addition, a first sensor 22 is provided on the fixed mold 2. The first sensor 22 is used to detect whether a stator is placed in the accommodating cavity. In this embodiment, the first sensor 22 can be a photoelectric sensor, and of course other types of sensors can also be used.

[0029] In another embodiment, the first driving member can also be a cylinder or linear motor driving member. Through the synchronous movement of multiple groups of driving members, the pressing plate 4 can be synchronously pushed closer to or away from the fixing fixture to achieve the shaping of the outer diameter of the stator coil.

[0030] The shaping device includes an upper die assembly, a lower die assembly and a second driving member 9, and the locking device can move between the upper die assembly and the lower die assembly along a straight line to cooperate with the shaping device to realize the pre-shaping of the coil. The upper die assembly and the lower die assembly both include shaping assemblies, and the shaping assemblies include a seat body 6 and a push rod 7. The two seat bodies 6 are respectively installed on the upper die assembly and the lower die assembly. One of the seat bodies 6 is installed on the upper die assembly, and the other seat body 6 can be installed on the lower die assembly. Of course, the other seat body 6 can also be installed below the fixed die 2; in this embodiment, the seat body 6 is installed below the fixed die 2. When the locking device moves between the upper die assembly and the lower die assembly, the seat body 6 installed below the fixed die 2 is symmetrically arranged with the seat body 6 installed on the upper die assembly. At this time, the two shaping assemblies are respectively located on the upper and lower sides of the stator, so the pre-shaping of the stator coil can be realized by using the cooperation of the two shaping assemblies and the locking device.

[0031] The second driving member 9 is connected to the two seat bodies 6, and the second driving member 9 can be used to push the two seat bodies 6 to move toward each other. In this embodiment, the second driving member 9 is preferably a screw. The second driving member 9 is arranged in the vertical direction, and at the same time, the two seat bodies 6 are provided with a connecting block that cooperates with the second driving member 9, and the connecting block and the screw thread cooperate. By using the screw thread cooperation between the screw and the connecting block, the upper mold assembly and the lower mold assembly can be driven to approach the stator. At the same time, the push rod 7 is arranged on the seat body 6, so that the seat body 6 can be used to drive the push rod 7 to be inserted into the inside of the stator. When the locking device moves between the upper mold assembly and the lower mold assembly, the second driving member 9 drives the two seat bodies 6 to move toward each other and continuously approach the stator until the seat body 6 drives the push rod 7 to be inserted into the inside of the stator, and then the power member 3 drives the second turntable 5 to rotate through the connecting rod 31, so that the pressure plate 4 is continuously close to the fixed fixture by using the force of the slider 41 and the slide groove 51, until the pressure plate 4 and the fixed fixture fit. At this time, a pressure plate 4 is pressed on the outside of the stator coil, and a push rod 7 is arranged inside the coil. Therefore, the coil located between the pressure plate 4 and the push rod 7 can be pressed by utilizing the action force between the pressure plate 4 and the push rod 7, thereby realizing pre-shaping of the coil.

[0032] In this embodiment, the shaping assembly is arranged below the fixed mold 2, and the seat body 6 is connected to the fixed mold 2 via a reset member 61. In this embodiment, the reset member 61 is preferably a coil spring. When the second driving member 9 drives the seat body 6 to approach the stator, the reset member 61 between the seat body 6 and the fixed mold 2 is in a compressed state. Therefore, the reset member 61 arranged below the fixed mold 2 can assist the seat body 6 and the push rod 7 in resetting, so that the push rod 7 and the stator can be separated after the shaping is completed.

[0033] The lower mold assembly also includes a cone sleeve 8, and the seat body 6 cooperates with the cone sleeve 8 and the second driving member 9. When the fixed mold 2 is moved to the top of the lower mold assembly, the cone sleeve 8 is just below the seat body 6, and the cone sleeve 8 and the second driving member 9 are threadedly matched. Therefore, the second driving member 9 can drive the cone sleeve 8 to move in the vertical direction, and then use the cone sleeve 8 to push the seat body 6 located above it close to the stator, so as to insert the push rod 7 into the inside of the stator. In this embodiment, the cone sleeve 8 is used to push the seat body 6 to move in a straight line, which can facilitate the second driving member 9 to push the seat body 6, and the cone sleeve 8 can also be used to limit the direction of the seat body 6 when it moves, so as to improve the accuracy of the position of the seat body 6 when it moves.

[0034] A slide rail 11 is provided on the machine body 1, and a slide block 21 cooperating with the slide rail 11 is provided on the fixed mold 2. The cooperation between the slide rail 11 and the slide block 21 is utilized to limit the direction of movement of the fixed mold 2, thereby ensuring the accuracy of the position of the fixed mold 2 when it moves between the upper mold assembly and the lower mold assembly.

[0035] The machine body 1 is provided with a second sensor 13, which is used to detect whether the position of the locking device is accurate when it moves between the upper mold assembly and the lower mold assembly. In this embodiment, the second sensor 13 can be a photoelectric sensor or the like.

[0036] A guide wheel 12 is provided on the machine body 1, and the fixed mold 2 is placed on the guide wheel 12. In this embodiment, guide wheels 12 are provided on both sides below the fixed mold 2. The fixed mold 2 is locked with the machine body 1 by a locking member 14. In this embodiment, the locking member can be a fastening bolt, a positioning pin, etc. When the specification of the coil changes or the fixed mold 2 needs to be replaced for other reasons, the locking member 14 is removed to release the locking state between the fixed mold 2 and the machine body 1, and then the fixed mold 2 is directly pulled out of the machine body 1, so as to facilitate the replacement of the fixed mold 2 as a whole. At the same time, the rotation of the guide wheel 12 can reduce the resistance of the fixed mold 2 during movement, so as to facilitate the operator to replace it.

[0037] The above-described embodiments are only preferred embodiments for fully illustrating the present invention, and the protection scope of the present invention is not limited thereto. Equivalent substitutions or changes made by those skilled in the art based on the present invention are within the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. A pre-shaping device, characterized in that: The invention comprises a machine body, on which a locking device and a shaping device are arranged; the locking device comprises a fixed die and at least two pressing plates, the fixed die is arranged on the machine body, and a receiving cavity for placing a stator is opened on the fixed die; the pressing plate is connected to a first driving member, and the first driving member can push the pressing plate to approach or move away from the receiving cavity, so that the pressing plate locks the stator; The shaping device comprises an upper die assembly, a lower die assembly and a second driving member, and the locking device can move between the upper die assembly and the lower die assembly; the upper die assembly and the lower die assembly both comprise shaping assemblies, and the shaping assemblies comprise a seat body and a push rod, and the two seat bodies are respectively mounted on the upper die assembly and the lower die assembly; the second driving member is connected to the two seat bodies to push the two seat bodies to move toward each other; the push rod is arranged on the seat body, and the push rod can be inserted into the stator; The first driving member includes a rotating disk, a sliding groove is provided on the rotating disk, and the pressing plate is connected to a slider; when the slider is embedded in the sliding groove and moves, all the pressing plates can synchronously approach or move away from the accommodating cavity; The slide grooves are all opened in an arc shape, and the two ends of the slide grooves are located in different circumferences. The end of the slide groove close to the accommodating cavity is recorded as the first end, and the end of the slide groove away from the accommodating cavity is recorded as the second end. When the slider is close to the first end, all the pressure blocks are close to each other to lock the stator; when the slider is close to the second end, all the pressure blocks are away from each other, and the stator is in an unlocked state at this time; a power part is arranged on the fixed mold, and the turntable is connected to the power part through a connecting rod; a screw rod is arranged on the fixed mold, and the power part is connected to a docking part, and the docking part and the screw rod are threadedly matched.

2. The pre-shaping device according to claim 1, characterized in that The fixed mold is provided with a first sensor for detecting the stator.

3. The pre-shaping device according to claim 1, characterized in that The lower die assembly comprises a cone sleeve, and the seat body is connected with the second driving member via the cone sleeve.

4. The pre-shaping device according to claim 1, characterized in that The shaping component is arranged below the fixed mold, and the seat body is connected to the fixed mold via a resetting member.

5. The pre-shaping device according to claim 1, characterized in that: The machine body is provided with a slide rail, and the fixed mold is provided with a slide block matched with the slide rail.

6. The pre-shaping device according to claim 1, characterized in that: The machine body is provided with a second sensor for detecting the fixed mold.

7. The pre-shaping device according to claim 1, characterized in that The machine body is provided with a plurality of guide wheels, and the fixed mold is placed on the guide wheels, and the fixed mold is locked with the machine body through a locking piece.

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