A shaping machine

Abstract

The invention discloses a shaping machine, comprising a machine body, on which are arranged an embracing device and a shaping device; the embracing device comprises a fixed die and at least two pressing plates, 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 to approach or move away from the accommodating cavity; the shaping device comprises an upper die assembly and a lower die assembly, and the embracing 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, a third driving member, a push rod, a pressing member, a reset member and at least two push plates, and the third driving member is arranged on the seat body and fixed to the push rod; all the push plates are arranged around the push rod, and the push rod comprises a pushing section and a contraction section, and the orthographic projection of the contraction section is located within the orthographic projection of the pushing section; when the pushing section and the push plate are in contact, the push plate can fit with the inner wall of the stator; all the push plates are connected by the reset member; and the pressing member is connected to the push rod.

Description

Technical Field

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

[0002] During the manufacturing process of the electric motor, the stator needs to be shaped after winding. The shaping process makes the wires at the ends close to each other, the shape is round, the inner diameter is larger than the inner diameter of the iron core, and the outer diameter is smaller than the outer diameter of the iron core. However, the end shaping in the prior art generally adopts rubber hammer or iron hammer to beat and shape, or uses a special shaping tire to insert into the inner circle of the end, and then shapes it by beating. The above shaping method will reduce the shaping rate of the stator coil, thereby reducing the efficiency of stator processing. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a shaping machine which can improve the efficiency of stator coil shaping.

[0004] In order to solve the above technical problems, the present invention provides a shaping machine, comprising a machine body, on which an embracing device and a shaping device are arranged; the embracing 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 and a lower mold assembly, and the embracing 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, a third driving member, a push rod, a pressure member, a reset member and at least two push plates, and the two seat bodies are respectively installed on the upper mold assembly and the lower mold assembly; the third driving member is arranged on the seat body and fixed to the push rod; all of the push plates are arranged around the push rod, and the push rod includes a pushing section and a contraction section, and the orthographic projection of the contraction section is located within the orthographic projection of the pushing section; when the pushing section and the push plate are in contact, the push plate can fit the inner wall of the stator; all of the push plates are connected by the reset member to assist the push plate in resetting; the pressure member is connected to the push rod and is used to press the end of the coil.

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

[0007] Furthermore, the embracing device also includes a plurality of protective blocks, and a protective tooth is provided at one end of the protective block close to the accommodating cavity, and the protective tooth can be embedded in the card slot of the stator; the protective block is connected to a second driving member, and the second driving member can push the protective block close to or away from the accommodating cavity.

[0008] Furthermore, the second driving member includes a second turntable, a second slide groove is provided on the second turntable, and the protection block is connected to a second slider; when the second slider is embedded in the second slide groove and moves, all the protection blocks can synchronously approach or move away from the accommodating cavity.

[0009] Furthermore, the first driving member and the second driving member move synchronously.

[0010] Furthermore, the pressing member is connected to the seat body via an elastic member to assist the pressing member in resetting.

[0011] Furthermore, the upper mold assembly and the lower mold assembly are connected with a fourth driving member, and the fourth driving member can drive the upper mold assembly and the lower mold assembly to move toward each other.

[0012] 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.

[0013] Furthermore, a first sensor is provided on the fixed mold for detecting the stator.

[0014] Furthermore, a second sensor is provided on the machine body for detecting the fixed mold.

[0015] Beneficial effects of the present invention:

[0016] The pressing plate can fit the stator under the push of the first driving member so as to use the pressing plate to perform preliminary shaping on the coil. The shaping device includes an upper mold assembly and a lower mold assembly, and the engaging device can move in a straight line between the upper mold assembly and the lower mold assembly to achieve further shaping of the coil; the coil located between the pressing plate and the push plate is pressed by the action force of the pressing plate and the push plate, thereby achieving the shaping of the coil; at the same time, the pressing member will apply pressure to the coil under the action of the pressure of the positioning plate, so as to use the pressing member to press the coil, thereby completing the shaping of the coil and improving the efficiency of coil shaping. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is an overall schematic diagram of the present invention;

[0018] Figure 2 It is a schematic diagram of the fixed mold in the present invention;

[0019] Figure 3is a schematic diagram of a pressure plate and a first rotating disk in the present invention;

[0020] Figure 4 is a schematic diagram of the protection block and the second rotating disk in the present invention;

[0021] Figure 5 is a schematic diagram of a shaping assembly in the present invention;

[0022] Figure 6 It is a cross-sectional view of the shaping component in the present invention.

[0023] Explanation of the numbers in the figure: 1. body; 11. locking member; 12. second sensor; 2. fixed mold; 21. accommodating chamber; 22. first sensor; 31. pressure plate; 311. first slider; 32. first turntable; 321. first slide groove; 3211. first end; 3212. second end; 41. protection block; 411. protection tooth; 412. second slider; 42. second turntable; 421. second slide groove; 4211. third end; 4212. fourth end; 5. seat; 51. third driving member; 52. push rod; 521. pushing section; 522. contraction section; 53. push plate; 531. reset member; 54. pressing member; 541. elastic member; 55. positioning plate; 6. fourth driving member; 7. stator. DETAILED DESCRIPTION

[0024] 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.

[0025] Reference Figure 1-Figure 6 As shown, an embodiment of the shaping machine of the present invention comprises a machine body 1, on which a clamping device and a shaping device are sequentially arranged. First, a stator 7 after winding is placed in the clamping device by a manipulator, and the stator 7 is fixed by the clamping device. Then, the clamping device is driven to move to the working position of the shaping device, and the shaping of the coil of the stator 7 is achieved through the cooperation of the clamping device and the shaping device.

[0026] The embracing device includes a fixed mold 2 and at least two pressing plates 31. The fixed mold 2 is arranged on the machine body 1, and a receiving cavity 21 for placing the stator 7 is opened on the fixed mold 2. The pressing plate 31 is embedded in the fixed mold 2 and arranged around the receiving cavity 21. The pressing plate 31 is connected to a first driving member, and the first driving member can push the pressing plate 31 to approach or move away from the receiving cavity 21. When the pressing plate 31 approaches the receiving cavity 21 under the push of the first driving member and fits with the outer wall of the stator 7, the purpose of locking the stator 7 by using the pressing plate 31 can be achieved. When the pressing plate 31 moves away from the receiving cavity 21 under the pull of the first driving member, the pressing plate 31 and the stator 7 are separated, thereby releasing the locking of the position of the stator 7. In this embodiment, the pressing plate 31 is arranged in an arc shape to increase the area when the pressing plate 31 and the stator 7 are in contact, and to increase the stability when the pressing plate 31 and the stator 7 are locked.

[0027] The first driving member includes a first rotating disk 32, which is rotatably arranged on the fixed mold 2. An arc-shaped first slide groove 321 is provided on the first rotating disk 32, and a first slider 311 cooperating with the first slide groove 321 is connected to the pressure plate 31, and the first slider 311 can be embedded in the first slide groove 321 and move. In this embodiment, the first slide grooves 321 are all arc-shaped, and the two ends of the first slide grooves 321 are located in different circumferences. The end of the first slide groove 321 close to the accommodating cavity 21 is recorded as the first end 3211, and the end of the first slide groove 321 away from the accommodating cavity 21 is recorded as the second end 3212. When the first slider 311 is close to the first end 3211, all the pressing blocks are close to each other to lock the stator 7; when the first slider 311 is close to the second end 3212, all the pressing blocks are away from each other, and the stator 7 is in an unlocked state. Therefore, when the first slider 311 is engaged in the first slide groove 321 and moves, all the pressing plates 31 can be driven to synchronously approach or move away from the accommodating chamber 21. In this embodiment, when the first rotating disk 32 rotates counterclockwise, the first slider 311 moves from the first end 3211 to the second end 3212, and all the pressing plates 31 gradually move away from the stator 7 to release the locking of the stator 7 by the pressing plates 31. Similarly, when the first rotating disk 32 rotates clockwise, the first slider 311 moves from the second end 3212 to the first end 3211, and all the pressing plates 31 gradually approach and abut against the stator 7 to achieve the locking of the stator 7.

[0028] In another embodiment, the first driving member may also be a driving member of a cylinder or a linear motor. Through the synchronous movement of multiple groups of driving members, the pressing plate 31 can be synchronously pushed closer to or away from the stator 7 to achieve locking and releasing of the stator 7.

[0029] The clasping device also includes a plurality of protection blocks 41, wherein the end of the protection block 41 is provided with a protection tooth 411, and the protection tooth 411 is arranged at one end close to the accommodating cavity 21. The protection tooth 411 can be embedded in the card slot of the stator 7 for winding, which can not only limit the position of the stator 7, but also protect the insulating paper embedded in the card slot. All the protection blocks 41 are arranged around the accommodating cavity 21, and the protection blocks 41 are connected to the second driving member, so that the second driving member can be used to push the protection blocks 41 close to or away from the stator 7.

[0030] The second driving member includes a second rotating disk 42, which is rotatably arranged on the fixed mold 2. An arc-shaped second slide groove 421 is provided on the second rotating disk 42, and a second slider 412 cooperating with the second slide groove 421 is connected to the protection block 41, and the second slider 412 can be embedded in the second slide groove 421 and move. In this embodiment, the second slide grooves 421 are all arc-shaped, and the two ends of the second slide grooves 421 are located in different circumferences. The end of the second slide groove 421 close to the accommodating cavity 21 is recorded as the third end 4211, and the end of the second slide groove 421 away from the accommodating cavity 21 is recorded as the fourth end 4212. When the second slider 412 is close to the third end 4211, all the protection blocks 41 are close to each other, and the protection teeth 411 can be embedded in the slot; when the second slider 412 is close to the fourth end 4212, all the protection blocks 41 are away from each other, and the protection teeth 411 are separated from the stator 7. Therefore, when the second slider 412 is engaged in the second slide groove 421 and moves, it can drive all the protection blocks 41 to synchronously approach or move away from the accommodating chamber 21, so that all the protection teeth 411 are synchronously embedded in the slots or separated from the stator 7. In this embodiment, when the second turntable 42 rotates counterclockwise, the second slider 412 moves from the third end 4211 to the fourth end 4212, and all the protection blocks 41 gradually move away from the stator 7 to release the engagement of the protection teeth 411 with the stator 7. Similarly, when the second turntable 42 rotates clockwise, the second slider 412 moves from the fourth end 4212 to the third end 4211, and all the protection blocks 41 gradually approach the stator 7, so that the protection teeth 411 can be embedded in the slots of the stator 7. According to Figure 3 and Figure 4 As shown, due to Figure 4 The positions of the first rotating disk 32 and the second rotating disk 42 are relative to Figure 3 The second rotating disk 42 is just reversed, so the clockwise and counterclockwise rotation of the second rotating disk 42 is based on Figure 3 In terms of the position of the second turntable 42.

[0031] In another embodiment, the second driving member can also be a driving member of a cylinder or a linear motor. Through the synchronous movement of multiple groups of driving members, the protection block 41 can be synchronously pushed closer to or away from the stator 7 to achieve the engagement and release of the protection tooth 411 on the stator 7.

[0032] The first driving member and the second driving member move synchronously, so that the pressing plate 31 and the protection block 41 can move synchronously, so that when the pressing plate 31 approaches and abuts against the stator 7, the protection teeth 411 can be embedded in the slot; or when the pressing plate 31 is away from the stator 7, the protection teeth 411 are also synchronously separated from the stator 7. In this embodiment, the first rotating disk 32 and the second rotating disk 42 are connected by the linkage block, and the central axis of the first rotating disk 32 coincides with the central axis of the second rotating disk 42, so that the first rotating disk 32 and the second rotating disk 42 can rotate synchronously, and the rotation speed of the first rotating disk 32 is equal to the rotation speed of the second rotating disk 42, so that it is convenient to control the movement of the pressing plate 31 and the protection block 41. In order to facilitate the driving of the first rotating disk 32 and the second rotating disk 42 to rotate, the motor is connected to the linkage block through a connecting rod, so that the torque of the motor can be transmitted to the first rotating disk 32 and the second rotating disk 42 by the connecting rod.

[0033] The fixed mold 2 is provided with a first sensor 22, and the first sensor 22 is used to detect whether the stator 7 is placed in the accommodating cavity 21. In this embodiment, the first sensor 22 can be a photoelectric sensor, and of course other types of sensors can also be used.

[0034] The shaping device includes an upper die assembly and a lower die assembly, and the embracing device can move in a straight line between the upper die assembly and the lower die assembly to further shape the coil. The process of preliminary shaping of the stator 7 and the coil by the pressing plate 31 can be completed before the embracing device moves to the upper die assembly and the lower die assembly, can be completed during the movement, or can be completed after the movement.

[0035] Both the upper die assembly and the lower die assembly include a shaping assembly, and the shaping assembly includes a seat body 5, a third driving member 51, a push rod 52, a pressing member 54, a reset member 531 and at least two push plates 53, wherein the two seat bodies 5 are respectively mounted on the upper die assembly and the lower die assembly. One of the seat bodies 5 is mounted on the upper die assembly, and the other seat body 5 can be mounted on the assembly, and of course the other seat body 5 can also be mounted below the fixed die 2. In this embodiment, the seat body 5 is mounted below the fixed die 2, and when the embracing device moves between the upper die assembly and the lower die assembly, the seat body 5 mounted below the fixed die 2 is symmetrically arranged with the seat body 5 mounted on the upper die assembly. At this time, the two shaping assemblies are respectively located on the upper and lower sides of the stator 7, so that the further shaping of the coils of the stator 7 can be achieved by utilizing the cooperation of the two shaping assemblies and the embracing device.

[0036] The third driving member 51 is fixedly arranged on the seat body 5, and the driving shaft of the third driving member 51 is fixedly connected to the push rod 52. In this embodiment, the third driving member 51 is preferably a cylinder. All the push plates 53 are arranged around the circumference of the push rod 52, and all the push plates 53 are located on the same circumference. In order to make the push plates 53 fit the stator 7 and the coil, the push plates 53 in this embodiment are all arranged in an arc shape.

[0037] The push rod 52 includes a push section 521 and a contraction section 522. In this embodiment, the cross-sectional area of ​​the push section 521 is greater than the cross-sectional area of ​​the contraction section 522, that is, the orthographic projection of the contraction section 522 is located inside the orthographic projection of the push section 521. In the initial state, the contraction section 522 and the push plate 53 are in contact or at a certain distance from the push plate 53. At this time, the push plates 53 are close to or in contact with each other, and the outer wall of the push plate 53 is at a certain distance from the inner wall of the stator 7, so that the push plate 53 can be inserted into the inside of the stator 7. Then, the third driving member 51 is used to push the push rod 52 to move along its axial direction, so that the push section 521 and the push plate 53 are in contact, and the radial size difference between the contraction section 522 and the push section 521 is used to push the push plate 53 to move radially. At this time, the push plates 53 are away from each other and gradually approach the inner wall of the stator 7 until they abut against the inner side wall of the stator 7. At this time, a pressing plate 31 is pressed on the outside of the stator 7, and a pushing plate 53 is inserted into the inside of the stator 7. Therefore, the coil located between the pressing plate 31 and the pushing plate 53 is pressed by the action of the pressing plate 31 and the pushing plate 53, thereby realizing the shaping of the coil.

[0038] The pressing piece 54 is connected to the push rod 52 and is located at the upper end of the push rod 52. In this embodiment, when the contraction section 522 and the push plate 53 cooperate, the pressing piece 54 is a certain distance away from the coil; and when the push rod 52 moves downward so that the push section 521 and the push plate 53 cooperate, the pressing piece 54 moves along the axial direction of the push rod 52 and is finally pressed on the upper end of the coil. Because the coil is stretched in the radial direction of the stator 7 when the push plate 53 and the pressure plate 31 are used to press the coil, the pressing piece 54 is used to press the coil in the radial direction of the stator 7, so that the shaping effect can be improved.

[0039] All the push plates 53 are connected by the reset member 531, so as to assist the reset of the push plates 53 by using the reset member 531. In this embodiment, the reset member 531 is preferably an elastic ring. The reset member 531 is arranged on the push plate 53. When the pushing section 521 applies a thrust to the push plate 53, the push plate 53 moves away in the radial direction of the push rod 52, and the reset member 531 is elastically deformed at this time. When the shaping is completed, the push rod 52 is retracted in its radial direction, and the contraction section 522 cooperates with the push plate 53. At this time, the thrust applied by the push rod 52 on the push plate 53 gradually decreases until it disappears. At the same time, the reset member 531 can transform its own elastic force into a thrust to push the push plate 53 to move, thereby assisting the push plate 53 to move toward the center of the push rod 52.

[0040] The pressing member 54 is connected to the base through the elastic member 541, so that the elastic member 541 can be used to assist the pressing member 54 in resetting. In this embodiment, a positioning plate 55 is fixedly connected to the side of the seat body 5 close to the stator 7, and a plurality of guide pillars are connected between the seat body 5 and the positioning plate 55, and the elastic member 541 is sleeved on the guide pillar. The free end of the push rod 52 can pass through the positioning plate 55, and the pressing member 54 is also fixedly set on the positioning plate 55. When the push plate 53 is inserted into the inside of the stator 7, the push rod 52 is pushed to move by the third driving member 51 until the pressing member 54 contacts the upper end of the coil. Then the push rod 52 is continued to move by the third driving member 51, and the elastic member 541 between the positioning plate 55 and the seat body 5 is continuously compressed, so that the pressing member 54 will apply pressure to the coil under the pressure of the positioning plate 55, so that the coil is pressed by the pressing member 54, thereby completing the shaping of the coil. After the shaping is completed, when the thrust applied to the positioning plate 55 disappears, the elastic member 541 can transform its own elastic force into thrust, thereby assisting the pressing member 54 in returning to its original position.

[0041] The upper mold assembly and the lower mold assembly are connected with a fourth driving member 6, which can drive the upper mold assembly and the lower mold assembly to move toward each other. In this embodiment, the fourth driving member 6 is preferably a screw. The screw is arranged in the vertical direction, and the seat body 5 located on the upper mold assembly is connected with a matching block, and the matching block and the screw thread are matched. By using the thread matching of the screw and the matching block, the upper mold assembly can be driven to approach the lower mold assembly, thereby driving the shaping assembly to gradually approach the stator 7. Of course, the screw can also be used to drive the upper mold assembly and the lower mold assembly to move toward each other synchronously.

[0042] The machine body 1 is provided with a second sensor 12, which is used to detect whether the position of the embracing device is accurate when it moves between the upper mold assembly and the lower mold assembly. In this embodiment, the second sensor 12 can be a photoelectric sensor or the like.

[0043] A guide wheel is provided on the machine body 1, and the fixed mold 2 is placed on the guide wheel. In this embodiment, guide wheels 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 11. 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 11 is removed to contact the locking state between the fixed mold 2 and the machine body 1, and then the fixed mold 2 is directly pulled out from 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 can reduce the resistance of the fixed mold 2 during movement, so as to facilitate the operator to replace it.

[0044] 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 shaping machine, characterized in that: The invention comprises a machine body, on which an embracing device and a shaping device are arranged; the embracing device comprises a fixed mold and at least two pressing plates, the fixed mold is arranged on the machine body, a receiving cavity for placing a stator is opened on the fixed mold, the pressing plates are embedded in the fixed mold and arranged around the receiving cavity; the pressing plates are connected to a first driving member, the first driving member can push the pressing plates to approach or move away from the receiving cavity, so that the pressing plates lock the stator; The shaping device comprises an upper die assembly and a lower die assembly, and the embracing 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, a third driving member, a push rod, a pressing member, a resetting member and at least two push plates; the third driving member is arranged on the seat body and fixed to the push rod; all the push plates are arranged around the push rod, and the push rod comprises a pushing section and a contraction section, and the orthographic projection of the contraction section is located within the orthographic projection of the pushing section; when the pushing section and the push plate are in contact, the push plate can fit the inner wall of the stator; all the push plates are connected by the resetting member to assist in resetting the push plates; the pressing member is connected to the push rod and is used to press the end of the coil; The first driving member comprises a first rotating disk, a first sliding groove is provided on the first rotating disk, and the pressure plate is connected to a first slider; when the first slider is embedded in the first sliding groove and moves, all the pressure plates can be synchronously moved close to or away from the accommodating cavity; the two ends of the first sliding groove are located in different circumferences, the end of the first sliding groove close to the accommodating cavity is recorded as the first end, and the end of the first sliding groove away from the accommodating cavity is recorded as the second end, when the first slider approaches the first end, all the pressure blocks approach each other to lock the stator; when the first slider approaches the second end, all the pressure blocks move away from each other, and at this time the stator is in an unlocked state; The embracing device also includes a plurality of protection blocks, and a protection tooth is provided at one end of the protection block close to the accommodating cavity, and the protection tooth can be embedded in the card slot of the stator; the protection block is connected to a second driving member, and the second driving member can push the protection block to approach or move away from the accommodating cavity.

2. The shaping machine according to claim 1, characterized in that: The second driving member includes a second turntable, a second slide groove is formed on the second turntable, and the protection block is connected to a second slider; when the second slider is embedded in the second slide groove and moves, all the protection blocks can synchronously approach or move away from the accommodating cavity.

3. The shaping machine according to claim 1, characterized in that: The first driving member and the second driving member move synchronously.

4. The shaping machine according to claim 1, characterized in that: The pressing member is connected to the seat body through an elastic member to assist the pressing member in resetting.

5. The shaping machine according to claim 1, characterized in that: The upper mold assembly and the lower mold assembly are connected with a fourth driving member, and the fourth driving member can drive the upper mold assembly and the lower mold assembly to move toward each other.

6. The shaping machine 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.

7. The shaping machine according to claim 1, characterized in that: The fixed mold is provided with a first sensor for detecting the stator.

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

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