Die head device

Abstract

The utility model belongs to a stator winding structure, and particularly relates to a die head device, which comprises an outer die, an inner die core, an upper protective die and a lower protective die, one end of the inner die core is movably arranged on the outer die, and the other end of the inner die core is provided with an abutting surface corresponding to stator teeth; the upper protection mold and the lower protection mold are hinged to the outer mold and correspond to the upper side and the lower side of the abutting face respectively, an upper linkage part used for driving the upper protection mold to rotate is arranged on the upper side of the inner mold core and connected with the upper protection mold, and a lower linkage part used for driving the lower protection mold to rotate is arranged on the lower side of the inner mold core and connected with the lower protection mold. According to the utility model, when the stator teeth abut against the abutting surface to control the inner mold core to move back, the upper protection mold and the lower protection mold are driven by the upper linkage part and the lower linkage part to rotate, and other driving motors and transmission structures do not need to be additionally arranged, so that the device is simpler in structure, more convenient to assemble and lower in cost.

Description

Technical Field

[0001] The utility model belongs to a stator winding structure, in particular to a die head structure. Background Art

[0002] The die head is a device used to assist stator winding; as disclosed in a prior patent, a movable die head for a flying fork winding machine (application number CN202022634818.2) includes a mounting frame, and a die head and a support assembly arranged on the mounting frame, the die head is movably connected to the mounting frame through an adjustment assembly, the adjustment assembly includes a movable plate and a movable block, the movable plate is provided with an inclined groove, the movable block is provided with a guide rod, and the guide rod is inserted in the groove; the movable plate is movably connected to the mounting frame through a telescopic shaft, the movable block is movably connected to the mounting frame through a positioning rod, and the die head is fixedly connected to the movable block. The die head can adjust the winding distance between the die head and the stator during the rotary winding process, so that when the die head winds different layers of enameled wire, the winding distance can be adjusted to ensure the consistency of the winding distance of each layer, thereby improving the wire arrangement accuracy and neatness after the stator winding is completed, and improving the product quality; however, in the prior patent, it is necessary to drive the telescopic shaft to move back and forth through a servo motor, and then control the position of the die head through the transmission between the movable plate fixed on the telescopic shaft and the movable block. The control structure is relatively complicated, which is not only troublesome to assemble, but also more expensive. Utility Model Content

[0003] In order to solve the above problems, the purpose of the utility model is to provide a die head device, which has a simple structure, is easy to assemble, and has a lower cost.

[0004] In order to achieve the above-mentioned purpose, the technical solution of the utility model is as follows.

[0005] A die head device, the device includes an outer die, an inner die core, an upper guard die, and a lower guard die, one end of the inner die core is movably arranged on the outer die, and the other end of the inner die core is provided with a supporting surface corresponding to the stator teeth; it is characterized in that the upper guard die and the lower guard die are both hinged to the outer die, and the upper guard die and the lower guard die respectively correspond to the upper and lower sides of the supporting surface, an upper linkage part for driving the upper guard die to rotate is provided on the upper side of the inner die core, and the upper linkage part is connected to the upper guard die, and a lower linkage part for driving the lower guard die to rotate is provided on the lower side of the inner die core, and the lower linkage part is connected to the lower guard die.

[0006] When the device assists in stator winding, the stator teeth are abutted against the abutting surface, so that the inner mold core moves back on the outer mold, and at this time, the upper linkage part and the lower linkage part on the upper and lower sides of the inner mold core respectively drive the upper and lower protective molds to rotate, so that the upper and lower protective molds are respectively rotated to the upper and lower sides of the abutting surface to protect the upper and lower sides of the stator teeth to assist in stator winding.

[0007] In the device, the upper linkage part and the lower linkage part of the inner mold core are linked to the upper and lower guard molds. When the stator teeth abut against the abutting surface to control the retraction movement of the inner mold core, the upper and lower guard molds are driven to rotate by the upper and lower linkage parts. There is no need to add other driving motors and transmission structures, which makes the structure of the device simpler, easier to assemble, and lower in cost.

[0008] Furthermore, the upper guard mold includes an upper guard mold body and an upper hinged part, the upper hinged part is fixedly arranged at the lower end of one side of the upper guard mold body, and an upper elastic body is arranged between the upper end of one side of the upper guard mold body and the outer mold; the lower guard mold includes a lower guard mold body and a lower hinged part, the lower hinged part is fixedly arranged at the lower end of one side of the lower guard mold body, and a lower elastic body is arranged between the upper end of one side of the lower guard mold body and the outer mold; the other end of the upper guard mold body and the other end of the lower guard mold body correspond to the upper and lower sides of the supporting surface respectively, the upper linkage part and the lower linkage part are movably supported on the upper guard mold body and the lower guard mold body respectively, and the side surfaces on which the upper guard mold body and the upper linkage part are movably supported, and the side surfaces on which the lower guard mold body and the lower linkage part are movably supported are both inclined surfaces.

[0009] When the inner mold core extends, the upper linkage part and the lower linkage part move at the side of the upper mold body and the lower mold body respectively, and through the abutting relationship between the upper linkage part, the lower linkage part and the upper mold body and the lower mold body, the upper mold body and the lower mold body rotate and compress the upper elastic body and the lower elastic body respectively; when the inner mold core retracts, the upper linkage part and the lower linkage part move at the upper mold body and the lower mold body respectively, and under the action of the rebound force of the upper elastic body and the lower elastic body, the other end of the upper mold body and the other end of the lower mold body move to the upper and lower sides of the abutting surface respectively. This process utilizes the resilience of the upper elastic body and the lower elastic body to return to the original position by compression; it can also be the resilience of the upper elastic body and the lower elastic body to return to the original position by stretching, specifically: when the inner mold core extends, the upper elastic body and the lower elastic body are stretched, and when the inner mold core retracts, the upper elastic body and the lower elastic body are reset.

[0010] Furthermore, an upper avoidance groove is provided at the lower end of the other side of the upper mold protection body, and a lower avoidance groove is provided at the upper end of the other side of the lower mold protection body. The upper avoidance groove and the lower avoidance groove correspond to the upper and lower ends of the stator teeth respectively, so as to better protect the upper and lower ends of the stator.

[0011] Furthermore, the upper and lower sides of the outer mold are respectively provided with an upper outer mold guide groove and a lower outer mold guide groove, the upper elastic body and the lower elastic body are respectively arranged in the upper outer mold guide groove and the lower outer mold guide groove, and the upper end of one side of the upper guard mold body and the lower end of one side of the lower guard mold body are respectively movably arranged at the upper outer mold guide groove and the lower outer mold guide groove. The setting of the upper outer mold guide groove and the lower outer mold guide groove is used to guide the rotation of the upper end of one side of the upper guard mold body and one side of the lower guard mold body.

[0012] Furthermore, the upper and lower sides of the inner mold core are respectively provided with an upper inner mold guide groove and a lower inner mold guide groove, the upper linkage part and the lower linkage part are respectively provided in the upper inner mold guide groove and the lower inner mold guide groove, and the upper guard mold and the lower guard mold are respectively movably provided at the upper inner mold guide groove and the lower inner mold guide groove. The upper inner mold guide groove and the lower inner mold guide groove are provided to guide the rotation of the upper guard mold and the lower guard mold respectively.

[0013] Furthermore, a reset elastic body is arranged between the outer mold and the inner mold core, and the reset elastic body is arranged so that the inner mold core automatically extends and resets when the stator teeth are separated from the abutting surface.

[0014] Furthermore, a movable body is provided at one end of the inner mold core, and a movable hole is provided in the outer mold that runs through both sides thereof. The movable body is movably arranged in the movable hole, the reset elastic body is sleeved on the outside of the movable body, and both ends of the reset elastic body are respectively connected to the inner mold core and the outer mold.

[0015] Furthermore, a first positioning groove is provided on the outer mold, and the first positioning groove surrounds the outer side of the movable hole. A second positioning groove is provided on the inner mold core, and the second positioning groove surrounds the outer side of the movable body. Both ends of the reset elastic body extend into the first positioning groove and the second positioning groove respectively.

[0016] Furthermore, the movable body is a rectangular parallelepiped structure, and the movable hole is a rectangular parallelepiped hole position.

[0017] Furthermore, a left protection part and a right protection part are provided at the other end of the inner mold core, and the left protection part and the right protection part are respectively located on the left and right sides of the abutting surface. The arrangement of the left protection part and the right protection part can be used to protect the left and right sides of the stator teeth.

[0018] The beneficial effect of the utility model lies in that, in the device, the upper linkage part and the lower linkage part of the inner mold core are linked to the upper and lower guard molds. When the stator teeth abut against the abutting surface to control the retraction movement of the inner mold core, the upper and lower guard molds are driven to rotate by the upper linkage part and the lower linkage part, and there is no need to add other driving motors and transmission structures, so that the structure of the device is simpler, the assembly is more convenient, and the cost is lower. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 It is a cross-sectional view of the utility model.

[0021] Figure 3 It is an exploded view of the utility model.

[0022] 1. outer mold; 11. upper outer mold guide groove; 12. lower outer mold guide groove; 13. movable hole; 14. first positioning groove; 15. outer mold groove;

[0023] 2. Inner mold core; 21. Abutting surface; 22. Upper linkage part; 23. Lower linkage part; 24. Upper inner mold guide groove; 25. Lower inner mold guide groove; 26. Movable body; 261. Limiting hole; 27. Second positioning groove; 28. Left protection part; 29. ​​Right protection part;

[0024] 3. Upper guard mold; 31. Upper guard mold body; 311. Upper avoidance groove; 32. Upper hinged part; 33. Upper elastic body;

[0025] 4. lower guard mold; 41. lower guard mold body; 411. lower avoidance groove; 42. lower hinged part; 43. lower elastic body;

[0026] 5. stator; 51. stator teeth;

[0027] 6. Reset the elastic body. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the utility model more clear, the utility model is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.

[0029] See also Figure 1-3 , a die head device, which is used for assisting the winding of the stator 5, and the device includes an outer mold 1, an inner mold core 2, an upper protective mold 3, and a lower protective mold 4. One end of the inner mold core 2 is movably arranged on the outer mold 1; for the stator 5, it includes a plurality of stator teeth 51, and the other end of the inner mold core 2 is provided with a supporting surface 21 corresponding to the stator teeth 51; the upper protective mold 3 and the lower protective mold 4 are both hinged to the outer mold 1, and the upper protective mold 3 and the lower protective mold 4 correspond to the upper and lower sides of the supporting surface 21 respectively, and an upper linkage part 22 for driving the upper protective mold 3 to rotate is provided on the upper side of the inner mold core 2, and the upper linkage part 22 is connected to the upper protective mold 3, and a lower linkage part 23 for driving the lower protective mold 4 to rotate is provided on the lower side of the inner mold core 2, and the lower linkage part 23 is connected to the lower protective mold 4.

[0030] In this embodiment, the upper mold guard 3 includes an upper mold guard body 31 and an upper hinged portion 32, the upper hinged portion 32 is fixedly arranged at the lower end of one side of the upper mold guard body 31, and an upper elastic body 33 is arranged between the upper end of one side of the upper mold guard body 31 and the outer mold 1; the lower mold guard 4 includes a lower mold guard body 41 and a lower hinged portion 42, the lower hinged portion 42 is fixedly arranged at the lower end of one side of the lower mold guard body 41, and a lower elastic body 43 is arranged between the upper end of one side of the lower mold guard body 41 and the outer mold 1; the other end of the upper mold guard body 31 and the other end of the lower mold guard body 41 correspond to the upper and lower sides of the abutting surface 21 respectively, the upper linkage portion 22 and the lower linkage portion 23 are movably abutted on the upper mold guard body 31 and the lower mold guard body 41 respectively, and the side surface of the upper mold guard body 31 and the upper linkage portion movably abutting, and the side surface of the lower mold guard body 41 and the lower linkage portion 23 movably abutting are both inclined surfaces. The upper elastic body 33 and the lower elastic body 43 are preferably springs.

[0031] Specifically, the linkage structure design between the upper and lower mold guards 3 and 4 and the upper and lower linkage parts 22 and 23 is a preferred design; there are also other implementation methods, such as providing linkage protrusions on the upper and lower linkage parts 22 and 23, and providing guide bevel grooves on the upper and lower mold guards 3 and 4. The linkage protrusions provided on the upper and lower linkage parts 22 and 23 cooperate with the guide bevel grooves on the upper and lower mold guards 3 and 4, so that when the inner mold core 2 extends or retracts, the upper and lower mold guards 3 and 4 are directly driven to leave the upper and lower ends of the stator teeth or protect the upper and lower ends of the stator teeth.

[0032] In this embodiment, an upper avoidance groove 311 is provided at the lower end of the other side of the upper mold protection body 31 , and a lower avoidance groove 411 is provided at the upper end of the other side of the lower mold protection body 41 .

[0033] In this embodiment, the upper outer mold guide groove 11 and the lower outer mold guide groove 12 are respectively provided on the upper and lower sides of the outer mold 1, the upper elastomer 33 and the lower elastomer 43 are respectively arranged in the upper outer mold guide groove 11 and the lower outer mold guide groove 12, and the upper end of one side of the upper protective mold body 31 and the lower end of one side of the lower protective mold body 41 are respectively movably arranged at the upper outer mold guide groove 11 and the lower outer mold guide groove 12.

[0034] In this embodiment, an upper inner mold guide groove 24 and a lower inner mold guide groove 25 are respectively provided on the upper and lower sides of the inner mold core 2, the upper linkage part 22 and the lower linkage part 23 are respectively arranged in the upper inner mold guide groove 24 and the lower inner mold guide groove 25, and the other end of the upper guard mold body 31 of the upper guard mold 3 and the other end of the lower guard mold body 41 of the lower guard mold 4 are respectively movably arranged in the upper inner mold guide groove 24 and the lower inner mold guide groove 25.

[0035] In this embodiment, a restoring elastic body 6 is provided between the outer mold 1 and the inner mold core 2. The restoring elastic body 6 is preferably a spring.

[0036] In this embodiment, a movable body 26 is provided at one end of the inner mold core 2, and a movable hole 13 is provided in the outer mold 1 that runs through both sides thereof. The movable body 26 is movably arranged in the movable hole 13, and the reset elastic body 6 is sleeved on the outside of the movable body 26, and the two ends of the reset elastic body 6 are respectively connected to the inner mold core 2 and the outer mold 1.

[0037] In this embodiment, a first positioning groove 14 is provided on the outer mold 1, and the first positioning groove 14 surrounds the outer side of the movable hole 13. A second positioning groove 27 is provided on the inner mold core 2, and the second positioning groove 27 surrounds the outer side of the movable body 26. The two ends of the reset elastic body 6 extend into the first positioning groove 14 and the second positioning groove 27 respectively.

[0038] In this embodiment, the movable body 26 is a rectangular parallelepiped structure, and the movable hole 13 is a rectangular parallelepiped hole.

[0039] In this embodiment, the outer mold 1 is further provided with an outer mold groove 15 connected to the movable hole 13, and a limiting hole 261 is provided at the end of the movable body 26 close to the outer mold groove 15. A limiting member is installed in the limiting hole 261, and the limiting member corresponds to the side of the outer mold groove 15. The limiting member can be used for limiting to prevent the movable body 26 from excessively exiting the movable hole 13 under the action of the reset elastic body 6. Specifically, the limiting hole 261 can be a threaded hole, and the limiting member is a screw.

[0040] In this embodiment, a left protection portion 28 and a right protection portion 29 are further provided at the other end of the inner mold core 2 , and the left protection portion 28 and the right protection portion 29 are respectively located on the left and right sides of the supporting surface 21 .

[0041] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A die head device, comprising an outer die, an inner die core, an upper guard die, and a lower guard die, wherein one end of the inner die core is movably arranged on the outer die, and the other end of the inner die core is provided with a supporting surface corresponding to the stator teeth; characterized in that: The upper and lower guard molds are both hinged to the outer mold, and the upper and lower guard molds correspond to the upper and lower sides of the supporting surface respectively. An upper linkage part for driving the upper guard mold to rotate is provided on the upper side of the inner mold core, and the upper linkage part is connected to the upper guard mold. A lower linkage part for driving the lower guard mold to rotate is provided on the lower side of the inner mold core, and the lower linkage part is connected to the lower guard mold.

2. A die head device according to claim 1, characterized in that: The upper guard mold includes an upper guard mold body and an upper hinged part, the upper hinged part is fixedly arranged at the lower end of one side of the upper guard mold body, and an upper elastic body is arranged between the upper end of one side of the upper guard mold body and the outer mold; the lower guard mold includes a lower guard mold body and a lower hinged part, the lower hinged part is fixedly arranged at the lower end of one side of the lower guard mold body, and a lower elastic body is arranged between the upper end of one side of the lower guard mold body and the outer mold; the other end of the upper guard mold body and the other end of the lower guard mold body correspond to the upper and lower sides of the supporting surface respectively, the upper linkage part and the lower linkage part are movably supported on the upper guard mold body and the lower guard mold body respectively, and the side surfaces of the upper guard mold body and the upper linkage part movably supported, and the side surfaces of the lower guard mold body and the lower linkage part movably supported are both inclined surfaces.

3. A die head device according to claim 2, characterized in that: An upper avoidance groove is arranged at the lower end of the other side of the upper mold protection body, and a lower avoidance groove is arranged at the upper end of the other side of the lower mold protection body.

4. A die head device according to claim 2, characterized in that: An upper outer mold guide groove and a lower outer mold guide groove are respectively arranged on the upper and lower sides of the outer mold, the upper elastomer and the lower elastomer are respectively arranged in the upper outer mold guide groove and the lower outer mold guide groove, and the upper end of one side of the upper guard mold body and the lower end of one side of the lower guard mold body are respectively movably arranged at the upper outer mold guide groove and the lower outer mold guide groove.

5. A die head device according to claim 1, characterized in that: An upper inner mold guide groove and a lower inner mold guide groove are respectively arranged on the upper and lower sides of the inner mold core, the upper linkage part and the lower linkage part are respectively arranged in the upper inner mold guide groove and the lower inner mold guide groove, and the upper guard mold and the lower guard mold are respectively movably arranged at the upper inner mold guide groove and the lower inner mold guide groove.

6. A die head device according to claim 1, characterized in that: A reset elastic body is arranged between the outer mold and the inner mold core.

7. A die head device according to claim 6, characterized in that: A movable body is arranged at one end of the inner mold core, and movable holes penetrating through both sides of the inner mold are arranged in the outer mold. The movable body is movably arranged in the movable hole, and the reset elastic body is sleeved on the outside of the movable body, and the two ends of the reset elastic body are respectively connected to the inner mold core and the outer mold.

8. A die head device according to claim 7, characterized in that: The outer mold is provided with a first positioning groove, the first positioning groove surrounds the outer side of the movable hole, the inner mold core is provided with a second positioning groove, the second positioning groove surrounds the outer side of the movable body, and the two ends of the reset elastic body extend into the first positioning groove and the second positioning groove respectively.

9. A die head device according to claim 7, characterized in that: The movable body is a rectangular parallelepiped structure, and the movable hole is a rectangular parallelepiped hole position.

10. A die head device according to any one of claims 1 to 9, characterized in that: A left protection portion and a right protection portion are also provided at the other end of the inner mold core, and the left protection portion and the right protection portion are respectively located on the left and right sides of the supporting surface.

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