Stator pressure shaping device

Abstract

The present invention relates to the field of motor processing technology, and discloses a stator pressurizing and shaping device, including a bottom plate, a top plate, a hydraulic cylinder, a movable plate and a pressurizing and shaping mechanism, a group of circulating conveying structures are arranged between the two pressurizing and shaping mechanisms and the bottom plate and the top plate, the circulating conveying structure is driven by a hydraulic cylinder hydraulic system, and each time it drives and operates half a station; the hydraulic system includes a forward driving structure arranged at the lower section of the circulating conveying structure, and a reverse driving structure arranged at the upper section of the circulating conveying structure. In the present application, by respectively cooperating the reverse driving structure and the forward driving structure in the transmission wheel one and the transmission wheel two, the forward and reverse conveying of the hydraulic oil in the hydraulic system is utilized to realize the segmented control of the transmission wheel one and the transmission wheel two, so that the circulating conveying structure can always maintain a stable distance transmission in the same direction, thereby cooperating with the operation of the upper and lower pressurizing and shaping mechanisms to realize a faster stator pressurizing and shaping operation.

Description

Technical Field

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

[0002] Stator winding refers to the winding installed on the stator, that is, the copper wire wound on the stator. Winding is a general term for a phase or the entire electromagnetic circuit composed of multiple coils or coil groups. Electric motors can be divided into centralized and distributed types according to the shape of the coil winding and the embedded wiring method. The winding and embedding of centralized windings are relatively simple, but the efficiency is low and the operating performance is poor. Most of the stators of AC motors use distributed windings. According to different machine types, models and coil embedding process conditions, the motors are designed with different winding forms and specifications. After the distributed windings are inserted during the processing, they need to be pressurized to be shaped.

[0003] The existing stator shaping machine is suitable for the coil shaping of small and medium-sized stators. The operator only needs to place the stator with embedded coils inside, first perform inner diameter stretching shaping, and then perform final shaping of height and outer diameter to achieve the required size. However, this stator pressure shaping machine needs to manually replace the stator inside after completing the pressure shaping, take out the pressurized stator, and place the unpressurized stator into the shaping slot, and then start the pressure structure again to complete the stator shaping. In this way, the efficiency of stator pressure shaping is generally low. At the same time, since the pressure structure will generate a large downward force when pressing down, workers are prone to accidental injuries, and the safety of the device operation is low. Therefore, the present invention proposes a stator pressure shaping device to solve the above problems. Summary of the invention

[0004] In order to solve the problem that the existing stator pressure shaping machine has low efficiency and insufficient safety factor, the present invention provides a stator pressure shaping device.

[0005] The present invention provides a stator pressurizing and shaping device that adopts the following technical solution:

[0006] A stator pressurizing and shaping device comprises a bottom plate and a top plate, wherein a movable plate driven by a hydraulic cylinder is movably connected between the bottom plate and the top plate, a pressurizing and shaping mechanism is arranged between the movable plate and the bottom plate and between the movable plate and the top plate, and a group of circulating conveying structures is arranged between the two pressurizing and shaping mechanisms and the bottom plate and the top plate, wherein the circulating conveying structure is driven by a hydraulic system of a hydraulic cylinder, and each time it is driven, half a station is operated;

[0007] The hydraulic system comprises a forward driving structure arranged at the lower section of the circulating conveying structure, and a reverse driving structure arranged at the upper section of the circulating conveying structure. Both the forward driving structure and the reverse driving structure drive the circulating conveying structure to rotate counterclockwise.

[0008] Preferably, the circulating conveying structure comprises two groups of outer frames arranged on both sides of the pressurizing and shaping mechanism, and the middle sections of the two groups of outer frames are respectively rotatably connected with a plurality of groups of transmission wheels 1 and a plurality of groups of transmission wheels 2, one of the plurality of groups of transmission wheels 1 is coaxially arranged with the reverse driving structure, and one of the plurality of groups of transmission wheels 2 is coaxially arranged with the forward driving structure;

[0009] The ends of the two groups of outer frames away from the pressurizing and shaping mechanisms are rotatably connected with reversing wheels.

[0010] Preferably, the hydraulic system includes a pump installed on the base plate, and a reversing valve cooperating with the pump is provided on one side of the pump, and the forward drive structure and the reverse drive structure are both connected in series on the delivery pipeline between the hydraulic cylinder and the reversing valve.

[0011] Preferably, the forward drive structure includes a drive box 1 and an impeller 1 rotatably connected therein, and the reverse drive structure includes a drive box 2 and an impeller 2 rotatably connected therein, and the impeller 1 and the impeller 2 both drive the drive wheel 2 and the drive wheel 1 to rotate in one direction and rotate relative to each other in the other direction;

[0012] The reversing valve is connected to the driving box 2 through pipeline 2, and the driving box 2 and the driving box 1 are connected through a transfer tube. The driving box 1 is connected to one end of the hydraulic cylinder through pipeline 1, and the other end of the hydraulic cylinder is connected to the oil tank of the hydraulic system through pipeline 3 via the reversing valve.

[0013] Preferably, the circulating conveying structure comprises sliding racks evenly distributed between two outer frames, a placement frame is welded at the middle position of each sliding rack, and an elastic belt is fixedly connected between two adjacent sliding racks.

[0014] Preferably, the hydraulic cylinder drives the sliding frame to move horizontally by half of its length in a single stroke.

[0015] Preferably, the pressurized shaping mechanism includes a shaping plate and a shaping seat arranged in a group, a top cone is welded at the center position of the shaping plate, guide columns are arranged at the four corner positions of the shaping plate, a circular array of sliding rods is arranged between the shaping plate and the movable plate, and the sliding sleeve on the sliding rod has an extrusion spring for elastically connecting the shaping plate and the movable plate.

[0016] Preferably, notches are provided on both sides of the shaping plate, and the two groups of outer frames are rotatably connected to limiting wheels at positions located inside the pressurized shaping mechanism, and the limiting wheels are located inside the notches.

[0017] In summary, the present invention includes at least one of the following beneficial technical effects:

[0018] By arranging transmission wheel one and transmission wheel two on the circulating conveying structure, and transmission wheel one and transmission wheel two respectively cooperating with the reverse drive structure and the forward drive structure, the forward and reverse transmission of hydraulic oil in the hydraulic system is utilized to realize segmented control of transmission wheel one and transmission wheel two, so that the circulating conveying structure can always maintain a stable distance transmission in the same direction, thereby cooperating with the operation of the upper and lower pressurizing and shaping mechanisms to realize a faster stator pressurizing and shaping operation.

[0019] The circulating conveying structure is provided with a sliding frame, and adjacent sliding frames are elastically connected through the gap fit of elastic bands, so that the sliding frame can carry the stator for synchronous numerical direction displacement, thereby realizing the insertion of the stator into the shaping seat, and sliding out of the shaping seat under the action of the elastic band, thereby reducing manual participation and improving the safety of processing.

[0020] In addition, the elastic belt can ensure that while the sliding frame performs a 180° reversing operation at the reversing wheel position, the sliding frame structure located on the inner side of the outer frame can maintain a relatively stable position structure and will not have an adverse effect on the position where the pressurized shaping is being performed. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an isometric structural schematic diagram of an embodiment of the invention.

[0022] Figure 2 It is a schematic diagram of an isometric structure viewed from above of an embodiment of the invention.

[0023] Figure 3 It is a schematic diagram of the rear isometric structure of an embodiment of the invention.

[0024] Figure 4 It is a schematic diagram of the structure of the pressurized shaping mechanism of an embodiment of the invention.

[0025] Figure 5 It is a partial cross-sectional schematic diagram of the driving structure of an embodiment of the invention.

[0026] Figure 6 It is a schematic diagram of the circulating conveying structure of an embodiment of the invention.

[0027] Figure 7 It is a schematic diagram of the overall connection of the sliding frame of an embodiment of the invention.

[0028] Explanation of the reference numerals in the accompanying drawings: 11, bottom plate; 12, top plate; 13, movable plate; 14, hydraulic cylinder; 15, shaping plate; 17, shaping seat; 19, top cone; 111, slide rod; 112, extrusion spring; 113, guide column; 114, notch; 21, outer frame; 22, transmission wheel one; 23, transmission wheel two; 24, reversing wheel; 25, limiting wheel; 31, sliding frame; 32, placement frame; 33, elastic belt; 331, downward pressure position; 332, adjustment position; 41, pump; 42, reversing valve; 43, pipeline one; 44, pipeline two; 45, transfer pipe; 46, drive box one; 47, drive box two; 461, impeller one; 471, impeller two; 48, pipeline three. DETAILED DESCRIPTION

[0029] The following is combined with Figure 1 - Attachment Figure 7 The present invention is described in further detail.

[0030] Example: Refer to Figure 1 - Figure 7 A stator pressurizing and shaping device includes a bottom plate 11 and a top plate 12, between which a movable plate 13 driven by a hydraulic cylinder 14 is movably connected, and the hydraulic cylinder 14 is fixedly connected to the bottom plate 11, and its top end is fixedly connected to the movable plate 13.

[0031] A pressurized shaping mechanism is provided between the movable plate 13 and the bottom plate 11 as well as between the movable plate 13 and the top plate 12. The pressurized shaping mechanism includes a shaping plate 15 and a shaping seat 17 arranged in groups. The shaping plate 15 moves synchronously with the movable plate 13. The shaping seat 17 is fixedly connected to the bottom plate 11 and the top plate 12 respectively. A top cone 19 is welded at the center of the shaping plate 15. Guide columns 113 are provided at the four corners of the shaping plate 15. A circular array of sliding rods 111 is provided between the shaping plate 15 and the movable plate 13, and a sliding sleeve on the sliding rod 111 is provided for The shaping plate 15 and the movable plate 13 are elastically connected to the extrusion spring 112. When the shaping plate 15 in the pressurized shaping mechanism approaches the shaping seat 17, the top cone 19 first contacts the center position of the stator, and pushes the stator as a whole to one side of the shaping seat 17. When the shaping plate 15 contacts the pad on the shaping seat 17, the shaping plate 15 stops moving, and the movable plate 13 drives the guide column 113 and the slide rod 111 to continue moving to ensure sufficient downward pressure until the preset stroke position of the hydraulic cylinder 14 is reached. After waiting for a few seconds to shape, the hydraulic cylinder 14 is reset;

[0032] Notches 114 are provided on both sides of the shaping plate 15. The two sets of outer frames 21 are rotatably connected to the limiting wheels 25 located on the inner side of the pressurized shaping mechanism, and the limiting wheels 25 are located on the inner side of the notches 114. The function of the limiting wheels 25 is as follows: during the resetting process of the shaping plate 15, the sliding frame 31 at the corresponding position is reset under the action of the elastic belt 33. Since there is a certain friction between the top cone 19 and the stator, and at the same time, the other sliding frames 31 are still moving, the top cone 19 and the stator axis are not completely colinear at this time. In order to prevent the sliding frame 31 from excessive displacement, the limiting wheel 25 is used to cause it to separate from the top cone 19 to ensure the normal operation of the device.

[0033] A group of circulating conveying structures is arranged between the two pressurizing and shaping mechanisms and the bottom plate 11 and the top plate 12. The circulating conveying structure includes two groups of outer frames 21 arranged on both sides of the pressurizing and shaping mechanisms. The two groups of outer frames 12 are symmetrically arranged in a C-shaped structure. The middle sections of the two groups of outer frames 21 are respectively rotatably connected with a plurality of groups of transmission wheels 1 22 and a plurality of transmission wheels 2 23. One of the plurality of transmission wheels 1 22 is coaxially arranged with the reverse driving structure, and one of the plurality of transmission wheels 23 is coaxially arranged with the forward driving structure. Each group of transmission wheels 1 22 and transmission wheels 2 23 are interference fit with both sides of the sliding frame 31 to ensure sufficient friction between each other, so as to avoid the sliding frame 31 from adversely affecting the stator in the pressurizing and shaping state when the side is reversed. The transmission wheels 1 22 and 23 are coaxially arranged between the upper one and the driving structure.

[0034] The ends of the two sets of outer frames 21 away from the pressurizing and shaping mechanism are rotatably connected with reversing wheels 24. Only one reversing wheel 24 is provided at each position and is located on the inner side of the sliding frame 31 to support the inner side of the sliding frame 31 when reversing.

[0035] The circulating conveying structure is driven by the hydraulic system of the hydraulic cylinder 14, which drives and operates half a station each time. The hydraulic cylinder 14 drives the sliding frame 31 to move horizontally half of its length in a single stroke.

[0036] The circulating conveying structure includes a sliding frame 31 evenly distributed between the two outer frames 21, and a placement frame 32 is welded in the middle position of each sliding frame 31. The inner side of the placement frame 32 is slidably connected with a frame, and the frame can slide to the top or bottom of the placement frame 32 to meet the stator placement requirements of the placement frame 32 above or below the circulating conveying structure. The frame receives the stator in the placement frame 32, and an elastic belt 33 is fixedly connected between two adjacent sliding frames 31. The two sliding frames 31 have a certain distance between each other when not affected by external forces. The elastic belt 33 forms a downward pressure position 331 at the pressurized shaping position, and the elastic belt 33 at the downward pressure position 331 is stretched. When the shaping plate 15 is reset, the elastic belt 33 is restored and the sliding frame 31 is pulled back to the initial position; the elastic belt 33 forms an adjustment position 332 at the reversing position, and the sliding frame 31 changes direction under the action of the reversing wheel 24, and its position is pulled by the elastic belt 33 and finally restored to a horizontal position;

[0037] The placement frame 32 located at the bottom is loaded from the left side and unloaded from the right side. The placement frame 32 located at the top is loaded from the right side and unloaded from the left side. The loading and unloading positions are both located in the horizontal section and do not contact the reversing section.

[0038] The hydraulic system includes a forward driving structure arranged at the lower section of the circulating conveying structure, and a reverse driving structure arranged at the upper section of the circulating conveying structure. Both the forward driving structure and the reverse driving structure drive the circulating conveying structure to rotate counterclockwise. Multiple forward driving structures and reverse driving structures can be provided, which are respectively located on both sides close to the pressurizing position, so as to ensure that the gap change between the external sliding frames 31 will not have an adverse effect on the pressurizing position, thereby weakening the influence of the elastic belt 33 on the spacing of the sliding frames 31.

[0039] The hydraulic system includes a pump 41 installed on the base plate 11 , and a reversing valve 42 cooperating with the pump 41 is provided on one side thereof. Both the forward driving structure and the reverse driving structure are connected in series on the delivery pipeline between the hydraulic cylinder 14 and the reversing valve 42 .

[0040] The forward driving structure includes a driving box 1 46 and an impeller 1 461 connected thereto for rotation, and the reverse driving structure includes a driving box 2 47 and an impeller 2 471 connected thereto for rotation. The impeller 1 461 and the impeller 2 471 both drive the driving wheel 2 23 and the driving wheel 1 22 to rotate in one direction, and rotate relative to each other in the other direction. The reversing valve 42 is connected to the driving box 2 47 through the pipeline 2 44, and the driving box 2 47 and the driving box 1 46 are connected through the transfer pipe 45. The driving box 1 46 is connected to one end of the hydraulic cylinder 14 through the pipeline 1 43, and the other end of the hydraulic cylinder 14 is connected to the oil tank of the hydraulic system through the pipeline 3 48 via the reversing valve 42. The impeller 1 461 and the driving wheel 2 23 are coaxially arranged, and a ratchet joint is used between the two. The impeller 2 471 and the transmission wheel 23 are also coaxially arranged, and the ratchet structure is also adopted between the two, so that when the impeller 1 461 is positively impacted by the hydraulic oil, it rotates counterclockwise, driving the transmission wheel 2 23 to rotate counterclockwise, so that the transmission circulation conveying structure rotates counterclockwise, and at this time, the upper impeller 2 471 rotates relative to the transmission wheel 23 under the action of the ratchet, which does not affect the operation of the transmission wheel 23; and when the impeller 2 471 is reversely impacted by the hydraulic oil, it rotates clockwise, the pulley transmission wheel 1 22 rotates clockwise, and the transmission circulation conveying structure rotates counterclockwise, and at this time, the lower transmission wheel 1 22 rotates relative to the transmission wheel 1 22 under the action of the ratchet, which does not affect the operation of the transmission wheel 1 22 at this time;

[0041] The driving of the driving wheel 2 23 and the driving wheel 1 22 by the impeller 1 461 and the impeller 2 471 corresponds to the contraction and extension states of the hydraulic cylinder 14 respectively, that is, no matter whether the hydraulic cylinder 14 is in the contraction or extension state, it can ensure its stable counterclockwise transmission of the circulating conveying structure.

[0042] After the pressurized shaping structure located below completes the pressurized shaping, the hydraulic cylinder 14 drives the movable plate 13 upward. At this time, the forward driving structure rotates counterclockwise to perform position transmission on the circulating conveying structure. When the hydraulic cylinder 14 extends to the maximum stroke, it pushes the stator upward just to the bottom of the shaping seat 17. Under the action of the top cone 19 and the elastic belt 33, the stator is embedded in the interior of the shaping seat 17 to complete the pressurized shaping. Then the hydraulic cylinder 14 is reset, and the reverse driving structure rotates clockwise to perform position transmission on the circulating conveying structure in the same way. This reciprocating process can complete the pressurized shaping operation on the stator in a cycle, thereby improving the processing rate.

[0043] It should be noted that, in this article, terms such as "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0044] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A stator pressure shaping device, comprising a bottom plate (11) and a top plate (12), wherein a movable plate (13) driven by a hydraulic cylinder (14) is movably connected between the bottom plate (11) and the top plate (12), and a pressure shaping mechanism is provided between the movable plate (13) and the bottom plate (11) and between the movable plate (13) and the top plate (12), wherein: A set of circulating conveying structures is arranged between the two pressurizing and shaping mechanisms and the bottom plate (11) and the top plate (12), and the circulating conveying structure is driven by a hydraulic system of a hydraulic cylinder (14), and each time it is driven, it operates half a station; The hydraulic system includes a forward driving structure arranged at the lower section of the circulating conveying structure, and a reverse driving structure arranged at the upper section of the circulating conveying structure, and both the forward driving structure and the reverse driving structure drive the circulating conveying structure to rotate counterclockwise; The hydraulic system comprises a pump (41) mounted on a base plate (11), and a reversing valve (42) cooperating with the pump (41) is provided on one side of the pump (41); The forward drive structure includes a drive box 1 (46) and an impeller 1 (461) rotatably connected thereto; the reverse drive structure includes a drive box 2 (47) and an impeller 2 (471) rotatably connected thereto; the impeller 1 (461) and the transmission wheel 2 (23) are coaxially arranged, and a ratchet structure is used between the two; the impeller 2 (471) and the transmission wheel 2 (23) are also coaxially arranged, and a ratchet structure is used between the two, so that when the impeller 1 (461) is positively impacted by the hydraulic oil, it rotates counterclockwise, driving the transmission wheel 2 (23) to rotate counterclockwise. Rotate, so that the transmission circulation conveying structure rotates counterclockwise, and at this time, the upper impeller 2 (471) rotates relative to the transmission wheel 2 (23) under the action of the ratchet, which does not affect the operation of the transmission wheel 2 (23); when the impeller 2 (471) is subjected to the reverse impact of the hydraulic oil, it rotates clockwise, and the pulley transmission wheel 1 (22) rotates clockwise. Similarly, the transmission circulation conveying structure rotates counterclockwise. At this time, the lower transmission wheel 1 (22) rotates relative to the transmission wheel 1 (22) under the action of the ratchet, which does not affect the operation of the transmission wheel 1 (22) at this time; The reversing valve (42) is connected to the second drive box (47) via the second pipe (44), and the second drive box (47) is connected to the first drive box (46) via the transfer pipe (45). The first drive box (46) is connected to one end of the hydraulic cylinder (14) via the first pipe (43), and the other end of the hydraulic cylinder (14) is connected to the oil tank of the hydraulic system via the third pipe (48) and the reversing valve (42).

2. A stator pressure shaping device according to claim 1, characterized in that: The circulating conveying structure comprises two groups of outer frames (21) arranged on both sides of the pressurizing and shaping mechanism, the middle sections of the two groups of outer frames (21) are rotatably connected to a plurality of groups of transmission wheels 1 (22) and a plurality of groups of transmission wheels 2 (23), one of the plurality of groups of transmission wheels 1 (22) is coaxially arranged with the reverse driving structure, and one of the plurality of groups of transmission wheels 2 (23) is coaxially arranged with the forward driving structure; The ends of the two groups of outer frames (21) away from the pressurizing and shaping mechanism are both rotatably connected to a reversing wheel (24).

3. A stator pressure shaping device according to claim 2, characterized in that: The forward drive structure and the reverse drive structure are both connected in series on the delivery pipeline between the hydraulic cylinder (14) and the reversing valve (42).

4. The stator pressure shaping device according to claim 1, characterized in that: The circulating conveying structure comprises sliding frames (31) evenly distributed between two outer frames (21), a placement frame (32) is welded at the middle position of each sliding frame (31), and an elastic belt (33) is fixedly connected between two adjacent sliding frames (31).

5. A stator pressure shaping device according to claim 4, characterized in that: The hydraulic cylinder (14) drives the sliding frame (31) to move horizontally by half of its length in a single stroke.

6. A stator pressurizing and shaping device according to claim 4, characterized in that: The pressurized shaping mechanism comprises a shaping plate (15) and a shaping seat (17) arranged in a group, a top cone (19) is welded at the center of the shaping plate (15), guide columns (113) are arranged at four corners of the shaping plate (15), a sliding rod (111) in an annular array is arranged between the shaping plate (15) and the movable plate (13), and a sliding sleeve on the sliding rod (111) has an extrusion spring (112) for elastically connecting the shaping plate (15) and the movable plate (13).

7. A stator pressurizing and shaping device according to claim 6, characterized in that: Notches (114) are provided on both sides of the shaping plate (15); the two sets of outer frames (21) are located inside the pressurized shaping mechanism and are rotatably connected to limit wheels (25); and the limit wheels (25) are located inside the notches (114).

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